12111210101022 has 128 divisors (see below), whose sum is σ = 25534941120000. Its totient is φ = 3824124175872.

The previous prime is 12111210100939. The next prime is 12111210101027. The reversal of 12111210101022 is 22010101211121.

It is a happy number.

It is a super-2 number, since 2×12111210101022² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12111210100992 and 12111210101010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12111210101027) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3895530804 + ... + 3895533912.

It is an arithmetic number, because the mean of its divisors is an integer number (199491727500).

Almost surely, 2^{12111210101022} is an apocalyptic number.

12111210101022 is an abundant number, since it is smaller than the sum of its proper divisors (13423731018978).

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

12111210101022 is a wasteful number, since it uses less digits than its factorization.

12111210101022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4458.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 12111210101022 its reverse (22010101211121), we get a palindrome (34121311312143).

The spelling of 12111210101022 in words is "twelve trillion, one hundred eleven billion, two hundred ten million, one hundred one thousand, twenty-two".