102220111057 has 2 divisors, whose sum is σ = 102220111058. Its totient is φ = 102220111056.

The previous prime is 102220111051. The next prime is 102220111069. The reversal of 102220111057 is 750111022201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 73942661776 + 28277449281 = 271924^2 + 168159^2 .

It is a cyclic number.

It is not a de Polignac number, because 102220111057 - 2⁷ = 102220110929 is a prime.

It is a super-2 number, since 2×102220111057² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (102220111051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51110055528 + 51110055529.

It is an arithmetic number, because the mean of its divisors is an integer number (51110055529).

Almost surely, 2^102220111057 is an apocalyptic number.

It is an amenable number.

102220111057 is a deficient number, since it is larger than the sum of its proper divisors (1).

102220111057 is an equidigital number, since it uses as much as digits as its factorization.

102220111057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 280, while the sum is 22.

Adding to 102220111057 its reverse (750111022201), we get a palindrome (852331133258).

The spelling of 102220111057 in words is "one hundred two billion, two hundred twenty million, one hundred eleven thousand, fifty-seven".