20222047499677 has 2 divisors, whose sum is σ = 20222047499678. Its totient is φ = 20222047499676.

The previous prime is 20222047499617. The next prime is 20222047499681. The reversal of 20222047499677 is 77699474022202.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12403279505241 + 7818767994436 = 3521829^2 + 2796206^2 .

It is a cyclic number.

It is not a de Polignac number, because 20222047499677 - 2²⁷ = 20221913281949 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20222047499617) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10111023749838 + 10111023749839.

It is an arithmetic number, because the mean of its divisors is an integer number (10111023749839).

Almost surely, 2^{20222047499677} is an apocalyptic number.

It is an amenable number.

20222047499677 is a deficient number, since it is larger than the sum of its proper divisors (1).

20222047499677 is an equidigital number, since it uses as much as digits as its factorization.

20222047499677 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 42674688, while the sum is 61.

The spelling of 20222047499677 in words is "twenty trillion, two hundred twenty-two billion, forty-seven million, four hundred ninety-nine thousand, six hundred seventy-seven".