22032255021 has 64 divisors (see below), whose sum is σ = 34516500480. Its totient is φ = 12242301120.

The previous prime is 22032255019. The next prime is 22032255023. The reversal of 22032255021 is 12055223022.

It is an interprime number because it is at equal distance from previous prime (22032255019) and next prime (22032255023).

It is not a de Polignac number, because 22032255021 - 2¹ = 22032255019 is a prime.

It is a super-2 number, since 2×22032255021² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 22032254982 and 22032255000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22032255023) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 58132410 + ... + 58132788.

It is an arithmetic number, because the mean of its divisors is an integer number (539320320).

Almost surely, 2^22032255021 is an apocalyptic number.

22032255021 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

22032255021 is a deficient number, since it is larger than the sum of its proper divisors (12484245459).

22032255021 is a wasteful number, since it uses less digits than its factorization.

22032255021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 894.

The product of its (nonzero) digits is 2400, while the sum is 24.

Adding to 22032255021 its reverse (12055223022), we get a palindrome (34087478043).

The spelling of 22032255021 in words is "twenty-two billion, thirty-two million, two hundred fifty-five thousand, twenty-one".