212615054404 has 9 divisors (see below), whose sum is σ = 372077959071. Its totient is φ = 106307066100.

The previous prime is 212615054357. The next prime is 212615054413. The reversal of 212615054404 is 404450516212.

The square root of 212615054404 is 461102.

It is a perfect power (a square), and thus also a powerful number.

It is a super-2 number, since 2×212615054404² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 212615054404.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 806929 + ... + 1037479.

Almost surely, 2^212615054404 is an apocalyptic number.

212615054404 is the 461102-nd square number.

It is an amenable number.

212615054404 is a deficient number, since it is larger than the sum of its proper divisors (159462904667).

212615054404 is an frugal number, since it uses more digits than its factorization.

212615054404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 461106 (or 230553 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 34.

The spelling of 212615054404 in words is "two hundred twelve billion, six hundred fifteen million, fifty-four thousand, four hundred four".