21223100221132 has 24 divisors (see below), whose sum is σ = 38421347252400. Its totient is φ = 10245576578496.

The previous prime is 21223100221117. The next prime is 21223100221151. The reversal of 21223100221132 is 23112200132212.

It is a super-2 number, since 2×21223100221132² (a number of 27 digits) contains 22 as substring.

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, 25794618 + ... + 26604670.

It is an arithmetic number, because the mean of its divisors is an integer number (1600889468850).

Almost surely, 2^{21223100221132} is an apocalyptic number.

It is an amenable number.

21223100221132 is a deficient number, since it is larger than the sum of its proper divisors (17198247031268).

21223100221132 is a wasteful number, since it uses less digits than its factorization.

21223100221132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1035945 (or 1035943 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 21223100221132 its reverse (23112200132212), we get a palindrome (44335300353344).

The spelling of 21223100221132 in words is "twenty-one trillion, two hundred twenty-three billion, one hundred million, two hundred twenty-one thousand, one hundred thirty-two".