102110212644 has 48 divisors (see below), whose sum is σ = 265961498880. Its totient is φ = 30222894240.

The previous prime is 102110212609. The next prime is 102110212651. The reversal of 102110212644 is 446212011201.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8989234 + ... + 9000585.

It is an arithmetic number, because the mean of its divisors is an integer number (5540864560).

Almost surely, 2^102110212644 is an apocalyptic number.

It is an amenable number.

102110212644 is an abundant number, since it is smaller than the sum of its proper divisors (163851286236).

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

102110212644 is a wasteful number, since it uses less digits than its factorization.

102110212644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17989880 (or 17989878 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 24.

Adding to 102110212644 its reverse (446212011201), we get a palindrome (548322223845).

The spelling of 102110212644 in words is "one hundred two billion, one hundred ten million, two hundred twelve thousand, six hundred forty-four".