102440245122 has 24 divisors (see below), whose sum is σ = 222214101564. Its totient is φ = 34106711904.

The previous prime is 102440245121. The next prime is 102440245139. The reversal of 102440245122 is 221542044201.

It is a happy number.

102440245122 is a `hidden beast` number, since 102 + 4 + 40 + 2 + 4 + 512 + 2 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 100958072121 + 1482173001 = 317739^2 + 38499^2 .

It is not an unprimeable number, because it can be changed into a prime (102440245121) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3320593 + ... + 3351300.

Almost surely, 2^102440245122 is an apocalyptic number.

102440245122 is an abundant number, since it is smaller than the sum of its proper divisors (119773856442).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

102440245122 is a wasteful number, since it uses less digits than its factorization.

102440245122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6672754 (or 6672751 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 27.

Adding to 102440245122 its reverse (221542044201), we get a palindrome (323982289323).

The spelling of 102440245122 in words is "one hundred two billion, four hundred forty million, two hundred forty-five thousand, one hundred twenty-two".