12202222212 has 48 divisors (see below), whose sum is σ = 31696257600. Its totient is φ = 4059581760.

The previous prime is 12202222163. The next prime is 12202222229. The reversal of 12202222212 is 21222220221.

12202222212 is a `hidden beast` number, since 1 + 220 + 222 + 221 + 2 = 666.

It is a super-2 number, since 2×12202222212² (a number of 21 digits) contains 22 as substring.

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

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52162 + ... + 164697.

It is an arithmetic number, because the mean of its divisors is an integer number (660338700).

Almost surely, 2^12202222212 is an apocalyptic number.

12202222212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12202222212 is an abundant number, since it is smaller than the sum of its proper divisors (19494035388).

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

12202222212 is a wasteful number, since it uses less digits than its factorization.

12202222212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 217393 (or 217385 counting only the distinct ones).

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

Adding to 12202222212 its reverse (21222220221), we get a palindrome (33424442433).

The spelling of 12202222212 in words is "twelve billion, two hundred two million, two hundred twenty-two thousand, two hundred twelve".