20002120101122 has 64 divisors (see below), whose sum is σ = 32483436467040. Its totient is φ = 9202100883456.

The previous prime is 20002120101101. The next prime is 20002120101137. The reversal of 20002120101122 is 22110102120002.

It can be written as a sum of positive squares in 16 ways, for example, as 1131949172761 + 18870170928361 = 1063931^2 + 4343981^2 .

It is a junction number, because it is equal to n+sod(n) for n = 20002120101097 and 20002120101106.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1661713688 + ... + 1661725724.

Almost surely, 2^{20002120101122} is an apocalyptic number.

20002120101122 is a deficient number, since it is larger than the sum of its proper divisors (12481316365918).

20002120101122 is a wasteful number, since it uses less digits than its factorization.

20002120101122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15335.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 20002120101122 its reverse (22110102120002), we get a palindrome (42112222221124).

The spelling of 20002120101122 in words is "twenty trillion, two billion, one hundred twenty million, one hundred one thousand, one hundred twenty-two".