20011111000122 has 64 divisors (see below), whose sum is σ = 44606284479360. Its totient is φ = 5933658931200.

The previous prime is 20011111000087. The next prime is 20011111000147. The reversal of 20011111000122 is 22100011111002.

It is a super-2 number, since 2×20011111000122² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20011111000098 and 20011111000107.

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, 12099847 + ... + 13653882.

It is an arithmetic number, because the mean of its divisors is an integer number (696973194990).

Almost surely, 2^{20011111000122} is an apocalyptic number.

20011111000122 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

20011111000122 is an abundant number, since it is smaller than the sum of its proper divisors (24595173479238).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20011111000122 is a wasteful number, since it uses less digits than its factorization.

20011111000122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25753999.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 20011111000122 its reverse (22100011111002), we get a palindrome (42111122111124).

The spelling of 20011111000122 in words is "twenty trillion, eleven billion, one hundred eleven million, one hundred twenty-two", and thus it is an aban number.