101210557140 has 144 divisors (see below), whose sum is σ = 382759977600. Its totient is φ = 21030762240.

The previous prime is 101210557039. The next prime is 101210557181. The reversal of 101210557140 is 41755012101.

101210557140 is a `hidden beast` number, since 101 + 2 + 1 + 0 + 557 + 1 + 4 + 0 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3637315 + ... + 3665034.

It is an arithmetic number, because the mean of its divisors is an integer number (2658055400).

Almost surely, 2^101210557140 is an apocalyptic number.

101210557140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101210557140 is an abundant number, since it is smaller than the sum of its proper divisors (281549420460).

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

101210557140 is a wasteful number, since it uses less digits than its factorization.

101210557140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7302382 (or 7302377 counting only the distinct ones).

The product of its (nonzero) digits is 1400, while the sum is 27.

Adding to 101210557140 its reverse (41755012101), we get a palindrome (142965569241).

The spelling of 101210557140 in words is "one hundred one billion, two hundred ten million, five hundred fifty-seven thousand, one hundred forty".