2010111210981 has 24 divisors (see below), whose sum is σ = 3020209079160. Its totient is φ = 1286716233600.

The previous prime is 2010111210977. The next prime is 2010111211049. The reversal of 2010111210981 is 1890121110102.

It can be written as a sum of positive squares in 4 ways, for example, as 173896506081 + 1836214704900 = 417009^2 + 1355070^2 .

It is not a de Polignac number, because 2010111210981 - 2² = 2010111210977 is a prime.

It is a super-2 number, since 2×2010111210981² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2010111210901) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 21227830 + ... + 21322311.

It is an arithmetic number, because the mean of its divisors is an integer number (125842044965).

Almost surely, 2^{2010111210981} is an apocalyptic number.

It is an amenable number.

2010111210981 is a deficient number, since it is larger than the sum of its proper divisors (1010097868179).

2010111210981 is a wasteful number, since it uses less digits than its factorization.

2010111210981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42550357 (or 42550354 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 27.

The spelling of 2010111210981 in words is "two trillion, ten billion, one hundred eleven million, two hundred ten thousand, nine hundred eighty-one".