101122857 has 16 divisors (see below), whose sum is σ = 163431360. Its totient is φ = 61286400.

The previous prime is 101122841. The next prime is 101122859. The reversal of 101122857 is 758221101.

It is not a de Polignac number, because 101122857 - 2⁴ = 101122841 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 101122857.

It is not an unprimeable number, because it can be changed into a prime (101122859) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 169944 + ... + 170537.

It is an arithmetic number, because the mean of its divisors is an integer number (10214460).

Almost surely, 2^101122857 is an apocalyptic number.

It is an amenable number.

101122857 is a deficient number, since it is larger than the sum of its proper divisors (62308503).

101122857 is a wasteful number, since it uses less digits than its factorization.

101122857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 340501 (or 340495 counting only the distinct ones).

The product of its (nonzero) digits is 1120, while the sum is 27.

The square root of 101122857 is about 10055.9861276754. The cubic root of 101122857 is about 465.8897014030.

Adding to 101122857 its reverse (758221101), we get a palindrome (859343958).

The spelling of 101122857 in words is "one hundred one million, one hundred twenty-two thousand, eight hundred fifty-seven".