12222122001220 has 48 divisors (see below), whose sum is σ = 25811866080000. Its totient is φ = 4861155962880.

The previous prime is 12222122001203. The next prime is 12222122001277. The reversal of 12222122001220 is 2210022122221.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 47991781 + ... + 48245779.

It is an arithmetic number, because the mean of its divisors is an integer number (537747210000).

Almost surely, 2^{12222122001220} is an apocalyptic number.

12222122001220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12222122001220 is an abundant number, since it is smaller than the sum of its proper divisors (13589744078780).

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

12222122001220 is a wasteful number, since it uses less digits than its factorization.

12222122001220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 267628 (or 267626 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 12222122001220 its reverse (2210022122221), we get a palindrome (14432144123441).

It can be divided in two parts, 12222122001 and 220, that added together give a palindrome (12222122221).

The spelling of 12222122001220 in words is "twelve trillion, two hundred twenty-two billion, one hundred twenty-two million, one thousand, two hundred twenty".