21022022109937 has 2 divisors, whose sum is σ = 21022022109938. Its totient is φ = 21022022109936.

The previous prime is 21022022109931. The next prime is 21022022110081. The reversal of 21022022109937 is 73990122022012.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14270594190736 + 6751427919201 = 3777644^2 + 2598351^2 .

It is a cyclic number.

It is not a de Polignac number, because 21022022109937 - 2²³ = 21022013721329 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 21022022109937.

It is not a weakly prime, because it can be changed into another prime (21022022109931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10511011054968 + 10511011054969.

It is an arithmetic number, because the mean of its divisors is an integer number (10511011054969).

Almost surely, 2^{21022022109937} is an apocalyptic number.

It is an amenable number.

21022022109937 is a deficient number, since it is larger than the sum of its proper divisors (1).

21022022109937 is an equidigital number, since it uses as much as digits as its factorization.

21022022109937 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 54432, while the sum is 40.

The spelling of 21022022109937 in words is "twenty-one trillion, twenty-two billion, twenty-two million, one hundred nine thousand, nine hundred thirty-seven".