20110120220122 has 32 divisors (see below), whose sum is σ = 31096578817152. Its totient is φ = 9746640944064.

The previous prime is 20110120220077. The next prime is 20110120220161. The reversal of 20110120220122 is 22102202101102.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 20110120220096 and 20110120220105.

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 15 ways as a sum of consecutive naturals, for example, 157832413 + ... + 157959775.

It is an arithmetic number, because the mean of its divisors is an integer number (971768088036).

Almost surely, 2^{20110120220122} is an apocalyptic number.

20110120220122 is a deficient number, since it is larger than the sum of its proper divisors (10986458597030).

20110120220122 is a wasteful number, since it uses less digits than its factorization.

20110120220122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135382.

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

Adding to 20110120220122 its reverse (22102202101102), we get a palindrome (42212322321224).

The spelling of 20110120220122 in words is "twenty trillion, one hundred ten billion, one hundred twenty million, two hundred twenty thousand, one hundred twenty-two".