20100010122011 has 4 divisors (see below), whose sum is σ = 20216195151792. Its totient is φ = 19983825092232.

The previous prime is 20100010121941. The next prime is 20100010122029. The reversal of 20100010122011 is 11022101000102.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20100010122011 - 2²² = 20100005927707 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20100010121983 and 20100010122001.

It is not an unprimeable number, because it can be changed into a prime (20100010122061) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 58092514631 + ... + 58092514976.

It is an arithmetic number, because the mean of its divisors is an integer number (5054048787948).

Almost surely, 2^{20100010122011} is an apocalyptic number.

20100010122011 is a deficient number, since it is larger than the sum of its proper divisors (116185029781).

20100010122011 is a wasteful number, since it uses less digits than its factorization.

20100010122011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116185029780.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 20100010122011 its reverse (11022101000102), we get a palindrome (31122111122113).

The spelling of 20100010122011 in words is "twenty trillion, one hundred billion, ten million, one hundred twenty-two thousand, eleven".