200221010099977 has 2 divisors, whose sum is σ = 200221010099978. Its totient is φ = 200221010099976.

The previous prime is 200221010099927. The next prime is 200221010100011. The reversal of 200221010099977 is 779990010122002.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 189742608034681 + 10478402065296 = 13774709^2 + 3237036^2 .

It is a cyclic number.

It is not a de Polignac number, because 200221010099977 - 2²³ = 200221001711369 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 200221010099977.

It is not a weakly prime, because it can be changed into another prime (200221010099917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100110505049988 + 100110505049989.

It is an arithmetic number, because the mean of its divisors is an integer number (100110505049989).

Almost surely, 2^{200221010099977} is an apocalyptic number.

It is an amenable number.

200221010099977 is a deficient number, since it is larger than the sum of its proper divisors (1).

200221010099977 is an equidigital number, since it uses as much as digits as its factorization.

200221010099977 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 285768, while the sum is 49.

The spelling of 200221010099977 in words is "two hundred trillion, two hundred twenty-one billion, ten million, ninety-nine thousand, nine hundred seventy-seven".