101105220 has 24 divisors (see below), whose sum is σ = 283094784. Its totient is φ = 26961376.

The previous prime is 101105203. The next prime is 101105233. The reversal of 101105220 is 22501101.

It is a super-2 number, since 2×101105220² = 20444531022496800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 101105196 and 101105205.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 842484 + ... + 842603.

It is an arithmetic number, because the mean of its divisors is an integer number (11795616).

Almost surely, 2^101105220 is an apocalyptic number.

101105220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101105220 is an abundant number, since it is smaller than the sum of its proper divisors (181989564).

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

101105220 is a wasteful number, since it uses less digits than its factorization.

101105220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1685099 (or 1685097 counting only the distinct ones).

The product of its (nonzero) digits is 20, while the sum is 12.

The square root of 101105220 is about 10055.1091490844. The cubic root of 101105220 is about 465.8626143043.

Adding to 101105220 its reverse (22501101), we get a palindrome (123606321).

The spelling of 101105220 in words is "one hundred one million, one hundred five thousand, two hundred twenty".