21032120022 has 16 divisors (see below), whose sum is σ = 43514731440. Its totient is φ = 6768958112.

The previous prime is 21032119981. The next prime is 21032120047. The reversal of 21032120022 is 22002123012.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 21032119983 and 21032120010.

It is a congruent number.

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, 60436953 + ... + 60437300.

It is an arithmetic number, because the mean of its divisors is an integer number (2719670715).

Almost surely, 2^21032120022 is an apocalyptic number.

21032120022 is an abundant number, since it is smaller than the sum of its proper divisors (22482611418).

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

21032120022 is a wasteful number, since it uses less digits than its factorization.

21032120022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120874287.

The product of its (nonzero) digits is 96, while the sum is 15.

Adding to 21032120022 its reverse (22002123012), we get a palindrome (43034243034).

The spelling of 21032120022 in words is "twenty-one billion, thirty-two million, one hundred twenty thousand, twenty-two".