222312120000 has 140 divisors (see below), whose sum is σ = 735016138296. Its totient is φ = 59283200000.

The previous prime is 222312119977. The next prime is 222312120001. The reversal of 222312120000 is 21213222.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is not an unprimeable number, because it can be changed into a prime (222312120001) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 806301 + ... + 1046300.

Almost surely, 2^222312120000 is an apocalyptic number.

222312120000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222312120000 is an abundant number, since it is smaller than the sum of its proper divisors (512704018296).

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

222312120000 is an equidigital number, since it uses as much as digits as its factorization.

222312120000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1852636 (or 1852611 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

Adding to 222312120000 its reverse (21213222), we get a palindrome (222333333222).

The spelling of 222312120000 in words is "two hundred twenty-two billion, three hundred twelve million, one hundred twenty thousand".