1222221443232 has 48 divisors (see below), whose sum is σ = 3318963409440. Its totient is φ = 393358624512.

The previous prime is 1222221443189. The next prime is 1222221443251. The reversal of 1222221443232 is 2323441222221.

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-2 number, since 2×1222221443232² (a number of 25 digits) contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 1222221443232.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 219505378 + ... + 219510945.

It is an arithmetic number, because the mean of its divisors is an integer number (69145071030).

Almost surely, 2^{1222221443232} is an apocalyptic number.

1222221443232 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1222221443232 is an abundant number, since it is smaller than the sum of its proper divisors (2096741966208).

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

1222221443232 is a wasteful number, since it uses less digits than its factorization.

1222221443232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 439016365 (or 439016357 counting only the distinct ones).

The product of its digits is 18432, while the sum is 30.

Adding to 1222221443232 its reverse (2323441222221), we get a palindrome (3545662665453).

The spelling of 1222221443232 in words is "one trillion, two hundred twenty-two billion, two hundred twenty-one million, four hundred forty-three thousand, two hundred thirty-two".