21622144550470 has 32 divisors (see below), whose sum is σ = 41242959355968. Its totient is φ = 8133445552128.

The previous prime is 21622144550459. The next prime is 21622144550491. The reversal of 21622144550470 is 7405544122612.

It is a super-2 number, since 2×21622144550470² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 51790899 + ... + 52206718.

It is an arithmetic number, because the mean of its divisors is an integer number (1288842479874).

Almost surely, 2^{21622144550470} is an apocalyptic number.

21622144550470 is a deficient number, since it is larger than the sum of its proper divisors (19620814805498).

21622144550470 is a wasteful number, since it uses less digits than its factorization.

21622144550470 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103998864.

The product of its (nonzero) digits is 537600, while the sum is 43.

The spelling of 21622144550470 in words is "twenty-one trillion, six hundred twenty-two billion, one hundred forty-four million, five hundred fifty thousand, four hundred seventy".