102222020977 has 2 divisors, whose sum is σ = 102222020978. Its totient is φ = 102222020976.

The previous prime is 102222020963. The next prime is 102222021067. The reversal of 102222020977 is 779020222201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 90093624336 + 12128396641 = 300156^2 + 110129^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-102222020977 is a prime.

It is not a weakly prime, because it can be changed into another prime (102222021977) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51111010488 + 51111010489.

It is an arithmetic number, because the mean of its divisors is an integer number (51111010489).

Almost surely, 2^102222020977 is an apocalyptic number.

It is an amenable number.

102222020977 is a deficient number, since it is larger than the sum of its proper divisors (1).

102222020977 is an equidigital number, since it uses as much as digits as its factorization.

102222020977 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14112, while the sum is 34.

The spelling of 102222020977 in words is "one hundred two billion, two hundred twenty-two million, twenty thousand, nine hundred seventy-seven".