102212029897 has 2 divisors, whose sum is σ = 102212029898. Its totient is φ = 102212029896.

The previous prime is 102212029859. The next prime is 102212029939. The reversal of 102212029897 is 798920212201.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 87906913081 + 14305116816 = 296491^2 + 119604^2 .

It is a cyclic number.

It is not a de Polignac number, because 102212029897 - 2⁷ = 102212029769 is a prime.

It is not a weakly prime, because it can be changed into another prime (102272029897) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51106014948 + 51106014949.

It is an arithmetic number, because the mean of its divisors is an integer number (51106014949).

Almost surely, 2^102212029897 is an apocalyptic number.

It is an amenable number.

102212029897 is a deficient number, since it is larger than the sum of its proper divisors (1).

102212029897 is an equidigital number, since it uses as much as digits as its factorization.

102212029897 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72576, while the sum is 43.

The spelling of 102212029897 in words is "one hundred two billion, two hundred twelve million, twenty-nine thousand, eight hundred ninety-seven".