20221021038 has 16 divisors (see below), whose sum is σ = 40564227456. Its totient is φ = 6719976120.

The previous prime is 20221021027. The next prime is 20221021039. The reversal of 20221021038 is 83012012202.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20221021039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5088906 + ... + 5092877.

It is an arithmetic number, because the mean of its divisors is an integer number (2535264216).

Almost surely, 2^20221021038 is an apocalyptic number.

20221021038 is an abundant number, since it is smaller than the sum of its proper divisors (20343206418).

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

20221021038 is a wasteful number, since it uses less digits than its factorization.

20221021038 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10182119.

The product of its (nonzero) digits is 384, while the sum is 21.

The spelling of 20221021038 in words is "twenty billion, two hundred twenty-one million, twenty-one thousand, thirty-eight".