2111200121012 has 12 divisors (see below), whose sum is σ = 3746636834976. Its totient is φ = 1040732453880.

The previous prime is 2111200120993. The next prime is 2111200121033. The reversal of 2111200121012 is 2101210021112.

It is a super-2 number, since 2×2111200121012² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3716901338 + ... + 3716901905.

It is an arithmetic number, because the mean of its divisors is an integer number (312219736248).

Almost surely, 2^{2111200121012} is an apocalyptic number.

It is an amenable number.

2111200121012 is a deficient number, since it is larger than the sum of its proper divisors (1635436713964).

2111200121012 is a wasteful number, since it uses less digits than its factorization.

2111200121012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7433803318 (or 7433803316 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 2111200121012 its reverse (2101210021112), we get a palindrome (4212410142124).

The spelling of 2111200121012 in words is "two trillion, one hundred eleven billion, two hundred million, one hundred twenty-one thousand, twelve".