220021111110112 has 24 divisors (see below), whose sum is σ = 466487067306456. Its totient is φ = 101548205127552.

The previous prime is 220021111110109. The next prime is 220021111110169. The reversal of 220021111110112 is 211011111120022.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

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, 264448450438 + ... + 264448451269.

It is an arithmetic number, because the mean of its divisors is an integer number (19436961137769).

Almost surely, 2^{220021111110112} is an apocalyptic number.

It is an amenable number.

220021111110112 is an abundant number, since it is smaller than the sum of its proper divisors (246465956196344).

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

220021111110112 is a wasteful number, since it uses less digits than its factorization.

220021111110112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 528896901730 (or 528896901722 counting only the distinct ones).

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

Adding to 220021111110112 its reverse (211011111120022), we get a palindrome (431032222230134).

The spelling of 220021111110112 in words is "two hundred twenty trillion, twenty-one billion, one hundred eleven million, one hundred ten thousand, one hundred twelve".