22021120023 has 32 divisors (see below), whose sum is σ = 36857856000. Its totient is φ = 11402889696.

The previous prime is 22021120021. The next prime is 22021120063. The reversal of 22021120023 is 32002112022.

It is a happy number.

It is not a de Polignac number, because 22021120023 - 2¹ = 22021120021 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22021119984 and 22021120011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22021120021) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1190623 + ... + 1208976.

It is an arithmetic number, because the mean of its divisors is an integer number (1151808000).

Almost surely, 2^22021120023 is an apocalyptic number.

22021120023 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

22021120023 is a deficient number, since it is larger than the sum of its proper divisors (14836735977).

22021120023 is a wasteful number, since it uses less digits than its factorization.

22021120023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2399651.

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

Adding to 22021120023 its reverse (32002112022), we get a palindrome (54023232045).

The spelling of 22021120023 in words is "twenty-two billion, twenty-one million, one hundred twenty thousand, twenty-three".