22202202221977 has 2 divisors, whose sum is σ = 22202202221978. Its totient is φ = 22202202221976.

The previous prime is 22202202221963. The next prime is 22202202222041. The reversal of 22202202221977 is 77912220220222.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21741899678041 + 460302543936 = 4662821^2 + 678456^2 .

It is a cyclic number.

It is not a de Polignac number, because 22202202221977 - 2¹¹ = 22202202219929 is a prime.

It is not a weakly prime, because it can be changed into another prime (22202202221917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11101101110988 + 11101101110989.

It is an arithmetic number, because the mean of its divisors is an integer number (11101101110989).

Almost surely, 2^{22202202221977} is an apocalyptic number.

It is an amenable number.

22202202221977 is a deficient number, since it is larger than the sum of its proper divisors (1).

22202202221977 is an equidigital number, since it uses as much as digits as its factorization.

22202202221977 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 112896, while the sum is 40.

The spelling of 22202202221977 in words is "twenty-two trillion, two hundred two billion, two hundred two million, two hundred twenty-one thousand, nine hundred seventy-seven".