20120222110122 has 64 divisors (see below), whose sum is σ = 48974171529600. Its totient is φ = 6094563552000.

The previous prime is 20120222110099. The next prime is 20120222110133. The reversal of 20120222110122 is 22101122202102.

It is a happy number.

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 = 20120222110095 and 20120222110104.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 377860504 + ... + 377913747.

It is an arithmetic number, because the mean of its divisors is an integer number (765221430150).

Almost surely, 2^{20120222110122} is an apocalyptic number.

20120222110122 is an abundant number, since it is smaller than the sum of its proper divisors (28853949419478).

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

20120222110122 is a wasteful number, since it uses less digits than its factorization.

20120222110122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 755774308 (or 755774302 counting only the distinct ones).

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

Adding to 20120222110122 its reverse (22101122202102), we get a palindrome (42221344312224).

The spelling of 20120222110122 in words is "twenty trillion, one hundred twenty billion, two hundred twenty-two million, one hundred ten thousand, one hundred twenty-two".