212303120256 has 96 divisors (see below), whose sum is σ = 633551263800. Its totient is φ = 70767696384.

The previous prime is 212303120201. The next prime is 212303120257. The reversal of 212303120256 is 652021303212.

It is a happy number.

212303120256 is a `hidden beast` number, since 212 + 303 + 120 + 25 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (96).

It is a super-2 number, since 2×212303120256² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212303120257) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3381691 + ... + 3443898.

Almost surely, 2^212303120256 is an apocalyptic number.

It is an amenable number.

212303120256 is an abundant number, since it is smaller than the sum of its proper divisors (421248143544).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

212303120256 is an frugal number, since it uses more digits than its factorization.

212303120256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6825618 (or 6825594 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

Adding to 212303120256 its reverse (652021303212), we get a palindrome (864324423468).

The spelling of 212303120256 in words is "two hundred twelve billion, three hundred three million, one hundred twenty thousand, two hundred fifty-six".