1222001931 has 8 divisors (see below), whose sum is σ = 1629666000. Its totient is φ = 814502912.

The previous prime is 1222001917. The next prime is 1222001933. The reversal of 1222001931 is 1391002221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1222001931 - 2⁵ = 1222001899 is a prime.

It is a super-2 number, since 2×1222001931² = 2986577438735457522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1222001898 and 1222001907.

It is not an unprimeable number, because it can be changed into a prime (1222001933) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22806 + ... + 54443.

It is an arithmetic number, because the mean of its divisors is an integer number (203708250).

Almost surely, 2^1222001931 is an apocalyptic number.

1222001931 is a deficient number, since it is larger than the sum of its proper divisors (407664069).

1222001931 is an equidigital number, since it uses as much as digits as its factorization.

1222001931 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82525.

The product of its (nonzero) digits is 216, while the sum is 21.

The square root of 1222001931 is about 34957.1442054410. The cubic root of 1222001931 is about 1069.1138705337.

The spelling of 1222001931 in words is "one billion, two hundred twenty-two million, one thousand, nine hundred thirty-one".