211994525107 has 2 divisors, whose sum is σ = 211994525108. Its totient is φ = 211994525106.

The previous prime is 211994525101. The next prime is 211994525147. The reversal of 211994525107 is 701525499112.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 211994525107 - 2²³ = 211986136499 is a prime.

It is a super-2 number, since 2×211994525107² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (211994525101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105997262553 + 105997262554.

It is an arithmetic number, because the mean of its divisors is an integer number (105997262554).

Almost surely, 2^211994525107 is an apocalyptic number.

211994525107 is a deficient number, since it is larger than the sum of its proper divisors (1).

211994525107 is an equidigital number, since it uses as much as digits as its factorization.

211994525107 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 226800, while the sum is 46.

The spelling of 211994525107 in words is "two hundred eleven billion, nine hundred ninety-four million, five hundred twenty-five thousand, one hundred seven".