20010121011122 has 16 divisors (see below), whose sum is σ = 32744560734144. Its totient is φ = 9095307786000.

The previous prime is 20010121011091. The next prime is 20010121011137. The reversal of 20010121011122 is 22111012101002.

It is a super-2 number, since 2×20010121011122² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20010121011097 and 20010121011106.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9071654 + ... + 11059617.

It is an arithmetic number, because the mean of its divisors is an integer number (2046535045884).

Almost surely, 2^{20010121011122} is an apocalyptic number.

20010121011122 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

20010121011122 is a deficient number, since it is larger than the sum of its proper divisors (12734439723022).

20010121011122 is a wasteful number, since it uses less digits than its factorization.

20010121011122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20176465.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 20010121011122 its reverse (22111012101002), we get a palindrome (42121133112124).

The spelling of 20010121011122 in words is "twenty trillion, ten billion, one hundred twenty-one million, eleven thousand, one hundred twenty-two".