22211002200991 has 2 divisors, whose sum is σ = 22211002200992. Its totient is φ = 22211002200990.

The previous prime is 22211002200983. The next prime is 22211002201051. The reversal of 22211002200991 is 19900220011222.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22211002200991 - 2³ = 22211002200983 is a prime.

It is a super-2 number, since 2×22211002200991² (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 (22211002200091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11105501100495 + 11105501100496.

It is an arithmetic number, because the mean of its divisors is an integer number (11105501100496).

Almost surely, 2^{22211002200991} is an apocalyptic number.

22211002200991 is a deficient number, since it is larger than the sum of its proper divisors (1).

22211002200991 is an equidigital number, since it uses as much as digits as its factorization.

22211002200991 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2592, while the sum is 31.

The spelling of 22211002200991 in words is "twenty-two trillion, two hundred eleven billion, two million, two hundred thousand, nine hundred ninety-one".