212597206377 has 16 divisors (see below), whose sum is σ = 298116464640. Its totient is φ = 134501753232.

The previous prime is 212597206343. The next prime is 212597206387. The reversal of 212597206377 is 773602795212.

It is not a de Polignac number, because 212597206377 - 2³⁵ = 178237468009 is a prime.

It is a super-2 number, since 2×212597206377² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (212597206387) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12121627 + ... + 12139152.

It is an arithmetic number, because the mean of its divisors is an integer number (18632279040).

Almost surely, 2^212597206377 is an apocalyptic number.

It is an amenable number.

212597206377 is a deficient number, since it is larger than the sum of its proper divisors (85519258263).

212597206377 is a wasteful number, since it uses less digits than its factorization.

212597206377 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24260932.

The product of its (nonzero) digits is 2222640, while the sum is 51.

The spelling of 212597206377 in words is "two hundred twelve billion, five hundred ninety-seven million, two hundred six thousand, three hundred seventy-seven".