101386220 has 24 divisors (see below), whose sum is σ = 229289424. Its totient is φ = 37434816.

The previous prime is 101386171. The next prime is 101386273. The reversal of 101386220 is 22683101.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 194714 + ... + 195233.

It is an arithmetic number, because the mean of its divisors is an integer number (9553726).

Almost surely, 2^101386220 is an apocalyptic number.

101386220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101386220 is an abundant number, since it is smaller than the sum of its proper divisors (127903204).

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

101386220 is a wasteful number, since it uses less digits than its factorization.

101386220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 389969 (or 389967 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 23.

The square root of 101386220 is about 10069.0724498337. The cubic root of 101386220 is about 466.2938030708.

The spelling of 101386220 in words is "one hundred one million, three hundred eighty-six thousand, two hundred twenty".