21264225161230 has 64 divisors (see below), whose sum is σ = 40764719259648. Its totient is φ = 7958551841280.

The previous prime is 21264225161183. The next prime is 21264225161339. The reversal of 21264225161230 is 3216152246212.

It is a super-2 number, since 2×21264225161230² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 21264225161230.

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, 20222659 + ... + 21248161.

It is an arithmetic number, because the mean of its divisors is an integer number (636948738432).

Almost surely, 2^{21264225161230} is an apocalyptic number.

21264225161230 is a deficient number, since it is larger than the sum of its proper divisors (19500494098418).

21264225161230 is a wasteful number, since it uses less digits than its factorization.

21264225161230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1026241.

The product of its (nonzero) digits is 69120, while the sum is 37.

The spelling of 21264225161230 in words is "twenty-one trillion, two hundred sixty-four billion, two hundred twenty-five million, one hundred sixty-one thousand, two hundred thirty".