12220455152 has 10 divisors (see below), whose sum is σ = 23677131888. Its totient is φ = 6110227568.

The previous prime is 12220455097. The next prime is 12220455199. The reversal of 12220455152 is 25155402221.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 381889208 + ... + 381889239.

Almost surely, 2^12220455152 is an apocalyptic number.

It is an amenable number.

12220455152 is a deficient number, since it is larger than the sum of its proper divisors (11456676736).

12220455152 is an equidigital number, since it uses as much as digits as its factorization.

12220455152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 763778455 (or 763778449 counting only the distinct ones).

The product of its (nonzero) digits is 8000, while the sum is 29.

Adding to 12220455152 its reverse (25155402221), we get a palindrome (37375857373).

The spelling of 12220455152 in words is "twelve billion, two hundred twenty million, four hundred fifty-five thousand, one hundred fifty-two".