22000200221977 has 2 divisors, whose sum is σ = 22000200221978. Its totient is φ = 22000200221976.

The previous prime is 22000200221971. The next prime is 22000200222001. The reversal of 22000200221977 is 77912200200022.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 17717187854041 + 4283012367936 = 4209179^2 + 2069544^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22000200221977 is a prime.

It is not a weakly prime, because it can be changed into another prime (22000200221971) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11000100110988 + 11000100110989.

It is an arithmetic number, because the mean of its divisors is an integer number (11000100110989).

Almost surely, 2^{22000200221977} is an apocalyptic number.

It is an amenable number.

22000200221977 is a deficient number, since it is larger than the sum of its proper divisors (1).

22000200221977 is an equidigital number, since it uses as much as digits as its factorization.

22000200221977 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14112, while the sum is 34.

Adding to 22000200221977 its reverse (77912200200022), we get a palindrome (99912400421999).

The spelling of 22000200221977 in words is "twenty-two trillion, two hundred million, two hundred twenty-one thousand, nine hundred seventy-seven".