2011111012122 has 32 divisors (see below), whose sum is σ = 4031563073280. Its totient is φ = 668813967360.

The previous prime is 2011111012103. The next prime is 2011111012181. The reversal of 2011111012122 is 2212101111102.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18082122 + ... + 18193002.

It is an arithmetic number, because the mean of its divisors is an integer number (125986346040).

Almost surely, 2^{2011111012122} is an apocalyptic number.

2011111012122 is an abundant number, since it is smaller than the sum of its proper divisors (2020452061158).

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

2011111012122 is a wasteful number, since it uses less digits than its factorization.

2011111012122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117878.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 2011111012122 its reverse (2212101111102), we get a palindrome (4223212123224).

The spelling of 2011111012122 in words is "two trillion, eleven billion, one hundred eleven million, twelve thousand, one hundred twenty-two".