220021220112 has 80 divisors (see below), whose sum is σ = 572186711040. Its totient is φ = 72850882176.

The previous prime is 220021220101. The next prime is 220021220113. The reversal of 220021220112 is 211022120022.

It is a junction number, because it is equal to n+sod(n) for n = 220021220091 and 220021220100.

It is not an unprimeable number, because it can be changed into a prime (220021220113) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12648573 + ... + 12665955.

It is an arithmetic number, because the mean of its divisors is an integer number (7152333888).

Almost surely, 2^220021220112 is an apocalyptic number.

It is an amenable number.

220021220112 is an abundant number, since it is smaller than the sum of its proper divisors (352165490928).

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

220021220112 is a wasteful number, since it uses less digits than its factorization.

220021220112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19140 (or 19134 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 220021220112 its reverse (211022120022), we get a palindrome (431043340134).

The spelling of 220021220112 in words is "two hundred twenty billion, twenty-one million, two hundred twenty thousand, one hundred twelve".