22212007090561 has 2 divisors, whose sum is σ = 22212007090562. Its totient is φ = 22212007090560.

The previous prime is 22212007090549. The next prime is 22212007090597. The reversal of 22212007090561 is 16509070021222.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12395722811536 + 9816284279025 = 3520756^2 + 3133095^2 .

It is a cyclic number.

It is not a de Polignac number, because 22212007090561 - 2¹⁷ = 22212006959489 is a prime.

It is a super-2 number, since 2×22212007090561² (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 22212007090561.

It is not a weakly prime, because it can be changed into another prime (22212007090961) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11106003545280 + 11106003545281.

It is an arithmetic number, because the mean of its divisors is an integer number (11106003545281).

Almost surely, 2^{22212007090561} is an apocalyptic number.

It is an amenable number.

22212007090561 is a deficient number, since it is larger than the sum of its proper divisors (1).

22212007090561 is an equidigital number, since it uses as much as digits as its factorization.

22212007090561 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 30240, while the sum is 37.

The spelling of 22212007090561 in words is "twenty-two trillion, two hundred twelve billion, seven million, ninety thousand, five hundred sixty-one".