101122770 has 48 divisors (see below), whose sum is σ = 282322368. Its totient is φ = 23113440.

The previous prime is 101122759. The next prime is 101122771. The reversal of 101122770 is 77221101.

It is a happy number.

It is a super-2 number, since 2×101122770² = 20451629224945800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (101122771) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 32926 + ... + 35865.

It is an arithmetic number, because the mean of its divisors is an integer number (5881716).

Almost surely, 2^101122770 is an apocalyptic number.

101122770 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

101122770 is an abundant number, since it is smaller than the sum of its proper divisors (181199598).

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

101122770 is a wasteful number, since it uses less digits than its factorization.

101122770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68815 (or 68808 counting only the distinct ones).

The product of its (nonzero) digits is 196, while the sum is 21.

The square root of 101122770 is about 10055.9818018928. The cubic root of 101122770 is about 465.8895677951.

Adding to 101122770 its reverse (77221101), we get a palindrome (178343871).

The spelling of 101122770 in words is "one hundred one million, one hundred twenty-two thousand, seven hundred seventy".