1222177481 has 16 divisors (see below), whose sum is σ = 1482612480. Its totient is φ = 983508480.

The previous prime is 1222177477. The next prime is 1222177633. The reversal of 1222177481 is 1847712221.

It is a happy number.

It is not a de Polignac number, because 1222177481 - 2² = 1222177477 is a prime.

It is a super-2 number, since 2×1222177481² = 2987435590127010722, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1222177471) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36116 + ... + 61226.

It is an arithmetic number, because the mean of its divisors is an integer number (92663280).

Almost surely, 2^1222177481 is an apocalyptic number.

It is an amenable number.

1222177481 is a deficient number, since it is larger than the sum of its proper divisors (260434999).

1222177481 is a wasteful number, since it uses less digits than its factorization.

1222177481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25544.

The product of its digits is 12544, while the sum is 35.

The square root of 1222177481 is about 34959.6550469252. The cubic root of 1222177481 is about 1069.1650635661.

The spelling of 1222177481 in words is "one billion, two hundred twenty-two million, one hundred seventy-seven thousand, four hundred eighty-one".