1222222771472 has 40 divisors (see below), whose sum is σ = 2527799549760. Its totient is φ = 570793426560.

The previous prime is 1222222771447. The next prime is 1222222771513. The reversal of 1222222771472 is 2741772222221.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28291583 + ... + 28334750.

It is an arithmetic number, because the mean of its divisors is an integer number (63194988744).

Almost surely, 2^{1222222771472} is an apocalyptic number.

It is an amenable number.

1222222771472 is an abundant number, since it is smaller than the sum of its proper divisors (1305576778288).

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

1222222771472 is a wasteful number, since it uses less digits than its factorization.

1222222771472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56626431 (or 56626425 counting only the distinct ones).

The product of its digits is 175616, while the sum is 41.

Adding to 1222222771472 its reverse (2741772222221), we get a palindrome (3963994993693).

The spelling of 1222222771472 in words is "one trillion, two hundred twenty-two billion, two hundred twenty-two million, seven hundred seventy-one thousand, four hundred seventy-two".