21131234222032 has 20 divisors (see below), whose sum is σ = 44663745060576. Its totient is φ = 9605106464480.

The previous prime is 21131234222027. The next prime is 21131234222081. The reversal of 21131234222032 is 23022243213112.

It is a happy number.

It is a super-3 number, since 3×21131234222032³ (a number of 41 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 60031915228 + ... + 60031915579.

Almost surely, 2^{21131234222032} is an apocalyptic number.

21131234222032 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

21131234222032 is an abundant number, since it is smaller than the sum of its proper divisors (23532510838544).

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

21131234222032 is a wasteful number, since it uses less digits than its factorization.

21131234222032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120063830826 (or 120063830820 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 28.

Adding to 21131234222032 its reverse (23022243213112), we get a palindrome (44153477435144).

The spelling of 21131234222032 in words is "twenty-one trillion, one hundred thirty-one billion, two hundred thirty-four million, two hundred twenty-two thousand, thirty-two".