22100212411021 has 2 divisors, whose sum is σ = 22100212411022. Its totient is φ = 22100212411020.

The previous prime is 22100212411001. The next prime is 22100212411051. The reversal of 22100212411021 is 12011421200122.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 17873117530921 + 4227094880100 = 4227661^2 + 2055990^2 .

It is a cyclic number.

It is not a de Polignac number, because 22100212411021 - 2³¹ = 22098064927373 is a prime.

It is a super-2 number, since 2×22100212411021² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 22100212411021.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22100212411001) 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, 11050106205510 + 11050106205511.

It is an arithmetic number, because the mean of its divisors is an integer number (11050106205511).

Almost surely, 2^{22100212411021} is an apocalyptic number.

It is an amenable number.

22100212411021 is a deficient number, since it is larger than the sum of its proper divisors (1).

22100212411021 is an equidigital number, since it uses as much as digits as its factorization.

22100212411021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 22100212411021 its reverse (12011421200122), we get a palindrome (34111633611143).

The spelling of 22100212411021 in words is "twenty-two trillion, one hundred billion, two hundred twelve million, four hundred eleven thousand, twenty-one".