221333020200977 has 2 divisors, whose sum is σ = 221333020200978. Its totient is φ = 221333020200976.

The previous prime is 221333020200947. The next prime is 221333020201031. The reversal of 221333020200977 is 779002020333122.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 169699368050641 + 51633652150336 = 13026871^2 + 7185656^2 .

It is a cyclic number.

It is not a de Polignac number, because 221333020200977 - 2¹⁰ = 221333020199953 is a prime.

It is a super-2 number, since 2×221333020200977² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (221333020200937) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110666510100488 + 110666510100489.

It is an arithmetic number, because the mean of its divisors is an integer number (110666510100489).

Almost surely, 2^{221333020200977} is an apocalyptic number.

It is an amenable number.

221333020200977 is a deficient number, since it is larger than the sum of its proper divisors (1).

221333020200977 is an equidigital number, since it uses as much as digits as its factorization.

221333020200977 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 190512, while the sum is 41.

The spelling of 221333020200977 in words is "two hundred twenty-one trillion, three hundred thirty-three billion, twenty million, two hundred thousand, nine hundred seventy-seven".