101111112220 has 24 divisors (see below), whose sum is σ = 216851068224. Its totient is φ = 39583924416.

The previous prime is 101111112209. The next prime is 101111112227. The reversal of 101111112220 is 22211111101.

It is a happy number.

101111112220 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 101111112220.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101111112227) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53781567 + ... + 53783446.

It is an arithmetic number, because the mean of its divisors is an integer number (9035461176).

Almost surely, 2^101111112220 is an apocalyptic number.

101111112220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101111112220 is an abundant number, since it is smaller than the sum of its proper divisors (115739956004).

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

101111112220 is a wasteful number, since it uses less digits than its factorization.

101111112220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107565069 (or 107565067 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 101111112220 its reverse (22211111101), we get a palindrome (123322223321).

The spelling of 101111112220 in words is "one hundred one billion, one hundred eleven million, one hundred twelve thousand, two hundred twenty".