101110221999977 has 2 divisors, whose sum is σ = 101110221999978. Its totient is φ = 101110221999976.

The previous prime is 101110221999973. The next prime is 101110222000037. The reversal of 101110221999977 is 779999122011101.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 81297254217001 + 19812967782976 = 9016499^2 + 4451176^2 .

It is a cyclic number.

It is not a de Polignac number, because 101110221999977 - 2² = 101110221999973 is a prime.

It is not a weakly prime, because it can be changed into another prime (101110221999973) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50555110999988 + 50555110999989.

It is an arithmetic number, because the mean of its divisors is an integer number (50555110999989).

Almost surely, 2^{101110221999977} is an apocalyptic number.

It is an amenable number.

101110221999977 is a deficient number, since it is larger than the sum of its proper divisors (1).

101110221999977 is an equidigital number, since it uses as much as digits as its factorization.

101110221999977 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1285956, while the sum is 59.

The spelling of 101110221999977 in words is "one hundred one trillion, one hundred ten billion, two hundred twenty-one million, nine hundred ninety-nine thousand, nine hundred seventy-seven".