1222032331 has 4 divisors (see below), whose sum is σ = 1316034832. Its totient is φ = 1128029832.

The previous prime is 1222032311. The next prime is 1222032349. The reversal of 1222032331 is 1332302221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1332302221 = 31 ⋅42977491.

It is a cyclic number.

It is not a de Polignac number, because 1222032331 - 2²¹ = 1219935179 is a prime.

It is a super-2 number, since 2×1222032331² = 2986726036018587122, 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 = 1222032299 and 1222032308.

It is not an unprimeable number, because it can be changed into a prime (1222032311) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47001231 + ... + 47001256.

It is an arithmetic number, because the mean of its divisors is an integer number (329008708).

Almost surely, 2^1222032331 is an apocalyptic number.

1222032331 is a deficient number, since it is larger than the sum of its proper divisors (94002501).

1222032331 is an equidigital number, since it uses as much as digits as its factorization.

1222032331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94002500.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 1222032331 is about 34957.5790208647. The cubic root of 1222032331 is about 1069.1227359840.

Adding to 1222032331 its reverse (1332302221), we get a palindrome (2554334552).

It can be divided in two parts, 12220 and 32331, that added together give a triangular number (44551 = T₂₉₈).

The spelling of 1222032331 in words is "one billion, two hundred twenty-two million, thirty-two thousand, three hundred thirty-one".