22231033020 has 72 divisors (see below), whose sum is σ = 77067585504. Its totient is φ = 5081378688.

The previous prime is 22231032977. The next prime is 22231033057. The reversal of 22231033020 is 2033013222.

It is a happy number.

22231033020 is a `hidden beast` number, since 2 + 2 + 2 + 310 + 330 + 20 = 666.

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

It is a junction number, because it is equal to n+sod(n) for n = 22231032984 and 22231033002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8820579 + ... + 8823098.

It is an arithmetic number, because the mean of its divisors is an integer number (1070383132).

Almost surely, 2^22231033020 is an apocalyptic number.

22231033020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22231033020 is an abundant number, since it is smaller than the sum of its proper divisors (54836552484).

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

22231033020 is a wasteful number, since it uses less digits than its factorization.

22231033020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17643699 (or 17643694 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

Adding to 22231033020 its reverse (2033013222), we get a palindrome (24264046242).

The spelling of 22231033020 in words is "twenty-two billion, two hundred thirty-one million, thirty-three thousand, twenty".