2012211999964 has 24 divisors (see below), whose sum is σ = 3571281802368. Its totient is φ = 991848263280.

The previous prime is 2012211999961. The next prime is 2012211999997. The reversal of 2012211999964 is 4699991122102.

It is a happy number.

It is a hoax number, since the sum of its digits (55) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2012211999961) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2984967 + ... + 3596449.

It is an arithmetic number, because the mean of its divisors is an integer number (148803408432).

Almost surely, 2^{2012211999964} is an apocalyptic number.

It is an amenable number.

2012211999964 is a deficient number, since it is larger than the sum of its proper divisors (1559069802404).

2012211999964 is a wasteful number, since it uses less digits than its factorization.

2012211999964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 623145 (or 623143 counting only the distinct ones).

The product of its (nonzero) digits is 1259712, while the sum is 55.

The spelling of 2012211999964 in words is "two trillion, twelve billion, two hundred eleven million, nine hundred ninety-nine thousand, nine hundred sixty-four".