22100010221977 has 2 divisors, whose sum is σ = 22100010221978. Its totient is φ = 22100010221976.

The previous prime is 22100010221969. The next prime is 22100010222013. The reversal of 22100010221977 is 77912201000122.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21418652424841 + 681357797136 = 4628029^2 + 825444^2 .

It is a cyclic number.

It is not a de Polignac number, because 22100010221977 - 2³ = 22100010221969 is a prime.

It is a super-2 number, since 2×22100010221977² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (22100010221917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11050005110988 + 11050005110989.

It is an arithmetic number, because the mean of its divisors is an integer number (11050005110989).

Almost surely, 2^{22100010221977} is an apocalyptic number.

It is an amenable number.

22100010221977 is a deficient number, since it is larger than the sum of its proper divisors (1).

22100010221977 is an equidigital number, since it uses as much as digits as its factorization.

22100010221977 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7056, while the sum is 34.

The spelling of 22100010221977 in words is "twenty-two trillion, one hundred billion, ten million, two hundred twenty-one thousand, nine hundred seventy-seven".