2111122121012 has 24 divisors (see below), whose sum is σ = 3698436696192. Its totient is φ = 1054426335200.

The previous prime is 2111122120927. The next prime is 2111122121027. The reversal of 2111122121012 is 2101212211112.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21601337 + ... + 21698847.

It is an arithmetic number, because the mean of its divisors is an integer number (154101529008).

Almost surely, 2^{2111122121012} is an apocalyptic number.

It is an amenable number.

2111122121012 is a deficient number, since it is larger than the sum of its proper divisors (1587314575180).

2111122121012 is a wasteful number, since it uses less digits than its factorization.

2111122121012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103279 (or 103277 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 2111122121012 its reverse (2101212211112), we get a palindrome (4212334332124).

The spelling of 2111122121012 in words is "two trillion, one hundred eleven billion, one hundred twenty-two million, one hundred twenty-one thousand, twelve".