222231211120 has 20 divisors (see below), whose sum is σ = 516687566040. Its totient is φ = 88892484416.

The previous prime is 222231211109. The next prime is 222231211273. The reversal of 222231211120 is 21112132222.

It is a tau number, because it is divible by the number of its divisors (20).

It is a super-2 number, since 2×222231211120² (a number of 23 digits) contains 22 as substring.

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, 1388944990 + ... + 1388945149.

It is an arithmetic number, because the mean of its divisors is an integer number (25834378302).

Almost surely, 2^222231211120 is an apocalyptic number.

222231211120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222231211120 is an abundant number, since it is smaller than the sum of its proper divisors (294456354920).

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

222231211120 is a wasteful number, since it uses less digits than its factorization.

222231211120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2777890152 (or 2777890146 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 222231211120 its reverse (21112132222), we get a palindrome (243343343342).

The spelling of 222231211120 in words is "two hundred twenty-two billion, two hundred thirty-one million, two hundred eleven thousand, one hundred twenty".