222020123200 has 84 divisors (see below), whose sum is σ = 548253533412. Its totient is φ = 88491827200.

The previous prime is 222020123177. The next prime is 222020123243. The reversal of 222020123200 is 2321020222.

It can be written as a sum of positive squares in 6 ways, for example, as 43454464 + 221976668736 = 6592^2 + 471144^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 202692 + ... + 696508.

Almost surely, 2^222020123200 is an apocalyptic number.

222020123200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 222020123200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (274126766706).

222020123200 is an abundant number, since it is smaller than the sum of its proper divisors (326233410212).

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

222020123200 is a wasteful number, since it uses less digits than its factorization.

222020123200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 494120 (or 494105 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

Adding to 222020123200 its reverse (2321020222), we get a palindrome (224341143422).

The spelling of 222020123200 in words is "two hundred twenty-two billion, twenty million, one hundred twenty-three thousand, two hundred".