102210440120440 has 32 divisors (see below), whose sum is σ = 229988929182480. Its totient is φ = 40881431352832.

The previous prime is 102210440120377. The next prime is 102210440120471. The reversal of 102210440120440 is 44021044012201.

It is a happy number.

It is a super-2 number, since 2×102210440120440² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 85168402 + ... + 86360161.

Almost surely, 2^{102210440120440} is an apocalyptic number.

102210440120440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102210440120440 is an abundant number, since it is smaller than the sum of its proper divisors (127778489062040).

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

102210440120440 is a wasteful number, since it uses less digits than its factorization.

102210440120440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171543471 (or 171543467 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 25.

Adding to 102210440120440 its reverse (44021044012201), we get a palindrome (146231484132641).

The spelling of 102210440120440 in words is "one hundred two trillion, two hundred ten billion, four hundred forty million, one hundred twenty thousand, four hundred forty".