220111101112 has 24 divisors (see below), whose sum is σ = 480089264760. Its totient is φ = 94333328880.

The previous prime is 220111101109. The next prime is 220111101139. The reversal of 220111101112 is 211101111022.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 220111101092 and 220111101101.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 280753564 + ... + 280754347.

It is an arithmetic number, because the mean of its divisors is an integer number (20003719365).

Almost surely, 2^220111101112 is an apocalyptic number.

It is an amenable number.

220111101112 is an abundant number, since it is smaller than the sum of its proper divisors (259978163648).

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

220111101112 is a wasteful number, since it uses less digits than its factorization.

220111101112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 561507931 (or 561507920 counting only the distinct ones).

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

Adding to 220111101112 its reverse (211101111022), we get a palindrome (431212212134).

The spelling of 220111101112 in words is "two hundred twenty billion, one hundred eleven million, one hundred one thousand, one hundred twelve".