20112120020122 has 96 divisors (see below), whose sum is σ = 34560083013120. Its totient is φ = 8749655665920.

The previous prime is 20112120020099. The next prime is 20112120020123. The reversal of 20112120020122 is 22102002121102.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 20112120020096 and 20112120020105.

It is not an unprimeable number, because it can be changed into a prime (20112120020123) 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, 4005597972 + ... + 4005602992.

It is an arithmetic number, because the mean of its divisors is an integer number (360000864720).

Almost surely, 2^{20112120020122} is an apocalyptic number.

20112120020122 is a deficient number, since it is larger than the sum of its proper divisors (14447962992998).

20112120020122 is a wasteful number, since it uses less digits than its factorization.

20112120020122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8088 (or 8075 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 20112120020122 its reverse (22102002121102), we get a palindrome (42214122141224).

The spelling of 20112120020122 in words is "twenty trillion, one hundred twelve billion, one hundred twenty million, twenty thousand, one hundred twenty-two".