101361220 has 12 divisors (see below), whose sum is σ = 212858604. Its totient is φ = 40544480.

The previous prime is 101361209. The next prime is 101361251. The reversal of 101361220 is 22163101.

It can be written as a sum of positive squares in 2 ways, for example, as 34644996 + 66716224 = 5886^2 + 8168^2 .

It is a junction number, because it is equal to n+sod(n) for n = 101361194 and 101361203.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2534011 + ... + 2534050.

It is an arithmetic number, because the mean of its divisors is an integer number (17738217).

Almost surely, 2^101361220 is an apocalyptic number.

101361220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101361220 is an abundant number, since it is smaller than the sum of its proper divisors (111497384).

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

101361220 is a wasteful number, since it uses less digits than its factorization.

101361220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5068070 (or 5068068 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 101361220 is about 10067.8309481238. The cubic root of 101361220 is about 466.2554733932.

The spelling of 101361220 in words is "one hundred one million, three hundred sixty-one thousand, two hundred twenty".