212545200254280 has 32 divisors (see below), whose sum is σ = 637635600763200. Its totient is φ = 56678720067776.

The previous prime is 212545200254171. The next prime is 212545200254291. The reversal of 212545200254280 is 82452002545212.

It is a happy number.

It is a super-2 number, since 2×212545200254280² (a number of 29 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 885605000940 + ... + 885605001179.

It is an arithmetic number, because the mean of its divisors is an integer number (19926112523850).

Almost surely, 2^{212545200254280} is an apocalyptic number.

212545200254280 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212545200254280 is an abundant number, since it is smaller than the sum of its proper divisors (425090400508920).

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

212545200254280 is a wasteful number, since it uses less digits than its factorization.

212545200254280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1771210002133 (or 1771210002129 counting only the distinct ones).

The product of its (nonzero) digits is 512000, while the sum is 42.

Adding to 212545200254280 its reverse (82452002545212), we get a palindrome (294997202799492).

The spelling of 212545200254280 in words is "two hundred twelve trillion, five hundred forty-five billion, two hundred million, two hundred fifty-four thousand, two hundred eighty".