211907232001 has 6 divisors (see below), whose sum is σ = 213984568770. Its totient is φ = 209849869728.

The previous prime is 211907231959. The next prime is 211907232011. The reversal of 211907232001 is 100232709112.

It can be written as a sum of positive squares in only one way, i.e., 145865941776 + 66041290225 = 381924^2 + 256985^2 .

It is not a de Polignac number, because 211907232001 - 2⁷ = 211907231873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (211907232011) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 9976536 + ... + 9997753.

It is an arithmetic number, because the mean of its divisors is an integer number (35664094795).

Almost surely, 2^211907232001 is an apocalyptic number.

It is an amenable number.

211907232001 is a deficient number, since it is larger than the sum of its proper divisors (2077336769).

211907232001 is an equidigital number, since it uses as much as digits as its factorization.

211907232001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19974495 (or 19974392 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 28.

The spelling of 211907232001 in words is "two hundred eleven billion, nine hundred seven million, two hundred thirty-two thousand, one".