1220031322 has 4 divisors (see below), whose sum is σ = 1830046986. Its totient is φ = 610015660.

The previous prime is 1220031283. The next prime is 1220031349. The reversal of 1220031322 is 2231300221.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1106161081 + 113870241 = 33259^2 + 10671^2 .

It is a super-2 number, since 2×1220031322² = 2976952853322135368, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1220031296 and 1220031305.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 305007829 + ... + 305007832.

Almost surely, 2^1220031322 is an apocalyptic number.

1220031322 is a deficient number, since it is larger than the sum of its proper divisors (610015664).

1220031322 is an equidigital number, since it uses as much as digits as its factorization.

1220031322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 610015663.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 1220031322 is about 34928.9467633938. The cubic root of 1220031322 is about 1068.5388744663.

Adding to 1220031322 its reverse (2231300221), we get a palindrome (3451331543).

The spelling of 1220031322 in words is "one billion, two hundred twenty million, thirty-one thousand, three hundred twenty-two".