1012222101222 has 24 divisors (see below), whose sum is σ = 2193346130976. Its totient is φ = 337376867856.

The previous prime is 1012222101221. The next prime is 1012222101263. The reversal of 1012222101222 is 2221012222101.

It is a happy number.

1012222101222 is a `hidden beast` number, since 10 + 1 + 222 + 210 + 1 + 222 = 666.

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 = 1012222101195 and 1012222101204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1012222101221) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2336493 + ... + 2735624.

It is an arithmetic number, because the mean of its divisors is an integer number (91389422124).

Almost surely, 2^{1012222101222} is an apocalyptic number.

1012222101222 is an abundant number, since it is smaller than the sum of its proper divisors (1181124029754).

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

1012222101222 is a wasteful number, since it uses less digits than its factorization.

1012222101222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5083212 (or 5083209 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 1012222101222 its reverse (2221012222101), we get a palindrome (3233234323323).

The spelling of 1012222101222 in words is "one trillion, twelve billion, two hundred twenty-two million, one hundred one thousand, two hundred twenty-two".