220453212 has 96 divisors (see below), whose sum is σ = 625701888. Its totient is φ = 58973184.

The previous prime is 220453199. The next prime is 220453231. The reversal of 220453212 is 212354022.

It is a super-2 number, since 2×220453212² = 97199237362233888, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 452433 + ... + 452919.

It is an arithmetic number, because the mean of its divisors is an integer number (6517728).

Almost surely, 2^220453212 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 220453212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (312850944).

220453212 is an abundant number, since it is smaller than the sum of its proper divisors (405248676).

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

220453212 is a wasteful number, since it uses less digits than its factorization.

220453212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 835 (or 833 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 220453212 is about 14847.6668874271. Note that the first 3 decimals coincide. The cubic root of 220453212 is about 604.0953279943.

The spelling of 220453212 in words is "two hundred twenty million, four hundred fifty-three thousand, two hundred twelve".