1222312442432 has 14 divisors (see below), whose sum is σ = 2425526253078. Its totient is φ = 611156221184.

The previous prime is 1222312442431. The next prime is 1222312442489. The reversal of 1222312442432 is 2342442132221.

It can be written as a sum of positive squares in only one way, i.e., 1204778445376 + 17533997056 = 1097624^2 + 132416^2 .

It is a Harshad number since it is a multiple of its sum of digits (32).

It is not an unprimeable number, because it can be changed into a prime (1222312442431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9549315893 + ... + 9549316020.

Almost surely, 2^{1222312442432} is an apocalyptic number.

It is an amenable number.

1222312442432 is a deficient number, since it is larger than the sum of its proper divisors (1203213810646).

1222312442432 is an equidigital number, since it uses as much as digits as its factorization.

1222312442432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19098631925 (or 19098631915 counting only the distinct ones).

The product of its digits is 36864, while the sum is 32.

Adding to 1222312442432 its reverse (2342442132221), we get a palindrome (3564754574653).

The spelling of 1222312442432 in words is "one trillion, two hundred twenty-two billion, three hundred twelve million, four hundred forty-two thousand, four hundred thirty-two".