21472330655722 has 16 divisors (see below), whose sum is σ = 34176139358400. Its totient is φ = 10082988868288.

The previous prime is 21472330655707. The next prime is 21472330655777. The reversal of 21472330655722 is 22755603327412.

It is a super-2 number, since 2×21472330655722² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 676150222 + ... + 676181977.

It is an arithmetic number, because the mean of its divisors is an integer number (2136008709900).

Almost surely, 2^{21472330655722} is an apocalyptic number.

21472330655722 is a deficient number, since it is larger than the sum of its proper divisors (12703808702678).

21472330655722 is a wasteful number, since it uses less digits than its factorization.

21472330655722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1352332685.

The product of its (nonzero) digits is 4233600, while the sum is 49.

The spelling of 21472330655722 in words is "twenty-one trillion, four hundred seventy-two billion, three hundred thirty million, six hundred fifty-five thousand, seven hundred twenty-two".