21232130000022 has 32 divisors (see below), whose sum is σ = 47215299686400. Its totient is φ = 7072458380424.

The previous prime is 21232130000021. The next prime is 21232130000033. The reversal of 21232130000022 is 22000003123212.

21232130000022 is a `hidden beast` number, since 21 + 2 + 321 + 300 + 0 + 0 + 0 + 22 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21232130000021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 136540638 + ... + 136696049.

It is an arithmetic number, because the mean of its divisors is an integer number (1475478115200).

Almost surely, 2^{21232130000022} is an apocalyptic number.

21232130000022 is an abundant number, since it is smaller than the sum of its proper divisors (25983169686378).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21232130000022 is a wasteful number, since it uses less digits than its factorization.

21232130000022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 273238137 (or 273238131 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 21232130000022 its reverse (22000003123212), we get a palindrome (43232133123234).

The spelling of 21232130000022 in words is "twenty-one trillion, two hundred thirty-two billion, one hundred thirty million, twenty-two", and thus it is an aban number.