2011012211970 has 48 divisors (see below), whose sum is σ = 5229013079160. Its totient is φ = 536230812672.

The previous prime is 2011012211969. The next prime is 2011012212037. The reversal of 2011012211970 is 791122101102.

It can be written as a sum of positive squares in 4 ways, for example, as 1566900594081 + 444111617889 = 1251759^2 + 666417^2 .

It is a super-2 number, since 2×2011012211970² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 436722 + ... + 2052498.

Almost surely, 2^{2011012211970} is an apocalyptic number.

2011012211970 is an abundant number, since it is smaller than the sum of its proper divisors (3218000867190).

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

2011012211970 is a wasteful number, since it uses less digits than its factorization.

2011012211970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1629619 (or 1629616 counting only the distinct ones).

The product of its (nonzero) digits is 504, while the sum is 27.

The spelling of 2011012211970 in words is "two trillion, eleven billion, twelve million, two hundred eleven thousand, nine hundred seventy".