20222212020977 has 2 divisors, whose sum is σ = 20222212020978. Its totient is φ = 20222212020976.

The previous prime is 20222212020973. The next prime is 20222212021003. The reversal of 20222212020977 is 77902021222202.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15001608522481 + 5220603498496 = 3873191^2 + 2284864^2 .

It is a cyclic number.

It is not a de Polignac number, because 20222212020977 - 2² = 20222212020973 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20222212020977.

It is not a weakly prime, because it can be changed into another prime (20222212020973) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10111106010488 + 10111106010489.

It is an arithmetic number, because the mean of its divisors is an integer number (10111106010489).

Almost surely, 2^{20222212020977} is an apocalyptic number.

It is an amenable number.

20222212020977 is a deficient number, since it is larger than the sum of its proper divisors (1).

20222212020977 is an equidigital number, since it uses as much as digits as its factorization.

20222212020977 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 56448, while the sum is 38.

The spelling of 20222212020977 in words is "twenty trillion, two hundred twenty-two billion, two hundred twelve million, twenty thousand, nine hundred seventy-seven".