212021446995 has 64 divisors (see below), whose sum is σ = 383153379840. Its totient is φ = 111222244224.

The previous prime is 212021446951. The next prime is 212021447017. The reversal of 212021446995 is 599644120212.

It is not a de Polignac number, because 212021446995 - 2²⁰ = 212020398419 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 212021446995.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2501857 + ... + 2585213.

It is an arithmetic number, because the mean of its divisors is an integer number (5986771560).

Almost surely, 2^212021446995 is an apocalyptic number.

212021446995 is a deficient number, since it is larger than the sum of its proper divisors (171131932845).

212021446995 is a wasteful number, since it uses less digits than its factorization.

212021446995 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83681 (or 83675 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 45.

The spelling of 212021446995 in words is "two hundred twelve billion, twenty-one million, four hundred forty-six thousand, nine hundred ninety-five".