102245015220 has 288 divisors, whose sum is σ = 317279047680. Its totient is φ = 24566169600.

The previous prime is 102245015179. The next prime is 102245015233. The reversal of 102245015220 is 22510542201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 63862420 + ... + 63864020.

It is an arithmetic number, because the mean of its divisors is an integer number (1101663360).

Almost surely, 2^102245015220 is an apocalyptic number.

102245015220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 102245015220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (158639523840).

102245015220 is an abundant number, since it is smaller than the sum of its proper divisors (215034032460).

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

102245015220 is a wasteful number, since it uses less digits than its factorization.

102245015220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1803 (or 1784 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 24.

Adding to 102245015220 its reverse (22510542201), we get a palindrome (124755557421).

The spelling of 102245015220 in words is "one hundred two billion, two hundred forty-five million, fifteen thousand, two hundred twenty".