21470657264212 has 24 divisors (see below), whose sum is σ = 40484052493472. Its totient is φ = 9904606408800.

The previous prime is 21470657264209. The next prime is 21470657264269. The reversal of 21470657264212 is 21246275607412.

It is a congruent number.

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, 102555114 + ... + 102764257.

Almost surely, 2^{21470657264212} is an apocalyptic number.

It is an amenable number.

21470657264212 is a deficient number, since it is larger than the sum of its proper divisors (19013395229260).

21470657264212 is a wasteful number, since it uses less digits than its factorization.

21470657264212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 205321399 (or 205321397 counting only the distinct ones).

The product of its (nonzero) digits is 2257920, while the sum is 49.

The spelling of 21470657264212 in words is "twenty-one trillion, four hundred seventy billion, six hundred fifty-seven million, two hundred sixty-four thousand, two hundred twelve".