1222090331 has 24 divisors (see below), whose sum is σ = 1557782640. Its totient is φ = 948024000.

The previous prime is 1222090319. The next prime is 1222090333. The reversal of 1222090331 is 1330902221.

It is not a de Polignac number, because 1222090331 - 2¹⁰ = 1222089307 is a prime.

It is a super-2 number, since 2×1222090331² = 2987009554247379122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1222090297 and 1222090306.

It is not an unprimeable number, because it can be changed into a prime (1222090333) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 118481 + ... + 128381.

It is an arithmetic number, because the mean of its divisors is an integer number (64907610).

Almost surely, 2^1222090331 is an apocalyptic number.

1222090331 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1222090331 is a deficient number, since it is larger than the sum of its proper divisors (335692309).

1222090331 is a wasteful number, since it uses less digits than its factorization.

1222090331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10155 (or 10148 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 23.

The square root of 1222090331 is about 34958.4085879206. The cubic root of 1222090331 is about 1069.1396499221.

Adding to 1222090331 its reverse (1330902221), we get a palindrome (2552992552).

The spelling of 1222090331 in words is "one billion, two hundred twenty-two million, ninety thousand, three hundred thirty-one".