22212000021222 has 48 divisors (see below), whose sum is σ = 52523423447040. Its totient is φ = 6728045958000.

The previous prime is 22212000021199. The next prime is 22212000021223.

22212000021222 is a `hidden beast` number, since 2 + 221 + 200 + 0 + 0 + 21 + 222 = 666.

22212000021222 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×22212000021222² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 22212000021195 and 22212000021204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22212000021223) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 23392822 + ... + 24323817.

It is an arithmetic number, because the mean of its divisors is an integer number (1094237988480).

Almost surely, 2^{22212000021222} is an apocalyptic number.

22212000021222 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

22212000021222 is an abundant number, since it is smaller than the sum of its proper divisors (30311423425818).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22212000021222 is a wasteful number, since it uses less digits than its factorization.

22212000021222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47719009 (or 47719006 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

It can be divided in two parts, 222120000 and 21222, that added together give a palindrome (222141222).

The spelling of 22212000021222 in words is "twenty-two trillion, two hundred twelve billion, twenty-one thousand, two hundred twenty-two".