102210021497 has 2 divisors, whose sum is σ = 102210021498. Its totient is φ = 102210021496.

The previous prime is 102210021467. The next prime is 102210021533. The reversal of 102210021497 is 794120012201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 91915686976 + 10294334521 = 303176^2 + 101461^2 .

It is a cyclic number.

It is not a de Polignac number, because 102210021497 - 2²² = 102205827193 is a prime.

It is a super-3 number, since 3×102210021497³ (a number of 34 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (102210021437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51105010748 + 51105010749.

It is an arithmetic number, because the mean of its divisors is an integer number (51105010749).

Almost surely, 2^102210021497 is an apocalyptic number.

It is an amenable number.

102210021497 is a deficient number, since it is larger than the sum of its proper divisors (1).

102210021497 is an equidigital number, since it uses as much as digits as its factorization.

102210021497 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2016, while the sum is 29.

Adding to 102210021497 its reverse (794120012201), we get a palindrome (896330033698).

The spelling of 102210021497 in words is "one hundred two billion, two hundred ten million, twenty-one thousand, four hundred ninety-seven".