21221560604230 has 64 divisors (see below), whose sum is σ = 47124682122240. Its totient is φ = 6719630569344.

The previous prime is 21221560604221. The next prime is 21221560604323. The reversal of 21221560604230 is 3240606512212.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 227213544 + ... + 227306923.

It is an arithmetic number, because the mean of its divisors is an integer number (736323158160).

Almost surely, 2^{21221560604230} is an apocalyptic number.

21221560604230 is an abundant number, since it is smaller than the sum of its proper divisors (25903121518010).

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

21221560604230 is a wasteful number, since it uses less digits than its factorization.

21221560604230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 454520533.

The product of its (nonzero) digits is 34560, while the sum is 34.

The spelling of 21221560604230 in words is "twenty-one trillion, two hundred twenty-one billion, five hundred sixty million, six hundred four thousand, two hundred thirty".