10020021232 has 20 divisors (see below), whose sum is σ = 20907160120. Its totient is φ = 4624625088.

The previous prime is 10020021211. The next prime is 10020021233. The reversal of 10020021232 is 23212002001.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10020021233) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24086382 + ... + 24086797.

It is an arithmetic number, because the mean of its divisors is an integer number (1045358006).

Almost surely, 2^10020021232 is an apocalyptic number.

It is an amenable number.

10020021232 is an abundant number, since it is smaller than the sum of its proper divisors (10887138888).

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

10020021232 is a wasteful number, since it uses less digits than its factorization.

10020021232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48173200 (or 48173194 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

Adding to 10020021232 its reverse (23212002001), we get a palindrome (33232023233).

The spelling of 10020021232 in words is "ten billion, twenty million, twenty-one thousand, two hundred thirty-two".