21022022022037 has 2 divisors, whose sum is σ = 21022022022038. Its totient is φ = 21022022022036.

The previous prime is 21022022022011. The next prime is 21022022022049. The reversal of 21022022022037 is 73022022022012.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11810226433201 + 9211795588836 = 3436601^2 + 3035094^2 .

It is a cyclic number.

It is not a de Polignac number, because 21022022022037 - 2⁷ = 21022022021909 is a prime.

It is a super-2 number, since 2×21022022022037² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21022022022077) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10511011011018 + 10511011011019.

It is an arithmetic number, because the mean of its divisors is an integer number (10511011011019).

Almost surely, 2^{21022022022037} is an apocalyptic number.

It is an amenable number.

21022022022037 is a deficient number, since it is larger than the sum of its proper divisors (1).

21022022022037 is an equidigital number, since it uses as much as digits as its factorization.

21022022022037 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2688, while the sum is 25.

Subtracting from 21022022022037 its sum of digits (25), we obtain a palindrome (21022022022012).

Adding to 21022022022037 its reverse (73022022022012), we get a palindrome (94044044044049).

The spelling of 21022022022037 in words is "twenty-one trillion, twenty-two billion, twenty-two million, twenty-two thousand, thirty-seven".