212213121032320 has 64 divisors (see below), whose sum is σ = 534023149996800. Its totient is φ = 80417603755008.

The previous prime is 212213121032281. The next prime is 212213121032323. The reversal of 212213121032320 is 23230121312212.

It is a tau number, because it is divible by the number of its divisors (64).

It is not an unprimeable number, because it can be changed into a prime (212213121032323) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8725856304 + ... + 8725880623.

It is an arithmetic number, because the mean of its divisors is an integer number (8344111718700).

Almost surely, 2^{212213121032320} is an apocalyptic number.

212213121032320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212213121032320 is an abundant number, since it is smaller than the sum of its proper divisors (321810028964480).

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

212213121032320 is a wasteful number, since it uses less digits than its factorization.

212213121032320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17451736965 (or 17451736953 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 212213121032320 its reverse (23230121312212), we get a palindrome (235443242344532).

The spelling of 212213121032320 in words is "two hundred twelve trillion, two hundred thirteen billion, one hundred twenty-one million, thirty-two thousand, three hundred twenty".