220231299877 has 2 divisors, whose sum is σ = 220231299878. Its totient is φ = 220231299876.

The previous prime is 220231299863. The next prime is 220231299887. The reversal of 220231299877 is 778992132022.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 196851055041 + 23380244836 = 443679^2 + 152906^2 .

It is a cyclic number.

It is not a de Polignac number, because 220231299877 - 2²³ = 220222911269 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (220231299887) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110115649938 + 110115649939.

It is an arithmetic number, because the mean of its divisors is an integer number (110115649939).

Almost surely, 2^220231299877 is an apocalyptic number.

It is an amenable number.

220231299877 is a deficient number, since it is larger than the sum of its proper divisors (1).

220231299877 is an equidigital number, since it uses as much as digits as its factorization.

220231299877 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1524096, while the sum is 52.

The spelling of 220231299877 in words is "two hundred twenty billion, two hundred thirty-one million, two hundred ninety-nine thousand, eight hundred seventy-seven".