12221011210122 has 96 divisors (see below), whose sum is σ = 31457557535040. Its totient is φ = 3380054895360.

The previous prime is 12221011210117. The next prime is 12221011210129. The reversal of 12221011210122 is 22101211012221.

12221011210122 is a `hidden beast` number, since 122 + 210 + 1 + 1 + 210 + 122 = 666.

It is a super-2 number, since 2×12221011210122² (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 = 12221011210095 and 12221011210104.

It is not an unprimeable number, because it can be changed into a prime (12221011210129) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 26444328 + ... + 26902499.

It is an arithmetic number, because the mean of its divisors is an integer number (327682890990).

Almost surely, 2^{12221011210122} is an apocalyptic number.

12221011210122 is an abundant number, since it is smaller than the sum of its proper divisors (19236546324918).

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

12221011210122 is a wasteful number, since it uses less digits than its factorization.

12221011210122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53346948 (or 53346945 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 12221011210122 its reverse (22101211012221), we get a palindrome (34322222222343).

The spelling of 12221011210122 in words is "twelve trillion, two hundred twenty-one billion, eleven million, two hundred ten thousand, one hundred twenty-two".