102401222197 has 2 divisors, whose sum is σ = 102401222198. Its totient is φ = 102401222196.

The previous prime is 102401222179. The next prime is 102401222243. The reversal of 102401222197 is 791222104201.

Together with previous prime (102401222179) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 78287480401 + 24113741796 = 279799^2 + 155286^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-102401222197 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102401222177) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51200611098 + 51200611099.

It is an arithmetic number, because the mean of its divisors is an integer number (51200611099).

Almost surely, 2^102401222197 is an apocalyptic number.

It is an amenable number.

102401222197 is a deficient number, since it is larger than the sum of its proper divisors (1).

102401222197 is an equidigital number, since it uses as much as digits as its factorization.

102401222197 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4032, while the sum is 31.

Adding to 102401222197 its reverse (791222104201), we get a palindrome (893623326398).

The spelling of 102401222197 in words is "one hundred two billion, four hundred one million, two hundred twenty-two thousand, one hundred ninety-seven".