2111122212012 has 48 divisors (see below), whose sum is σ = 5970850704000. Its totient is φ = 639734003280.

The previous prime is 2111122211983. The next prime is 2111122212041. The reversal of 2111122212012 is 2102122211112.

It is an interprime number because it is at equal distance from previous prime (2111122211983) and next prime (2111122212041).

It is a Harshad number since it is a multiple of its sum of digits (18).

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, 888518262 + ... + 888520637.

It is an arithmetic number, because the mean of its divisors is an integer number (124392723000).

Almost surely, 2^{2111122212012} is an apocalyptic number.

2111122212012 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

2111122212012 is an abundant number, since it is smaller than the sum of its proper divisors (3859728491988).

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

2111122212012 is a wasteful number, since it uses less digits than its factorization.

2111122212012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1777038923 (or 1777038915 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 2111122212012 its reverse (2102122211112), we get a palindrome (4213244423124).

The spelling of 2111122212012 in words is "two trillion, one hundred eleven billion, one hundred twenty-two million, two hundred twelve thousand, twelve".