1122222331 has 4 divisors (see below), whose sum is σ = 1124427600. Its totient is φ = 1120017064.

The previous prime is 1122222319. The next prime is 1122222359. The reversal of 1122222331 is 1332222211.

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

It is a cyclic number.

It is not a de Polignac number, because 1122222331 - 2²⁷ = 988004603 is a prime.

It is a super-2 number, since 2×1122222331² = 2518765920390147122, 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 = 1122222299 and 1122222308.

It is not an unprimeable number, because it can be changed into a prime (1122220331) 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, 1101871 + ... + 1102888.

It is an arithmetic number, because the mean of its divisors is an integer number (281106900).

Almost surely, 2^1122222331 is an apocalyptic number.

1122222331 is a deficient number, since it is larger than the sum of its proper divisors (2205269).

1122222331 is an equidigital number, since it uses as much as digits as its factorization.

1122222331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2205268.

The product of its digits is 288, while the sum is 19.

The square root of 1122222331 is about 33499.5870273053. The cubic root of 1122222331 is about 1039.1852380329.

Adding to 1122222331 its reverse (1332222211), we get a palindrome (2454444542).

The spelling of 1122222331 in words is "one billion, one hundred twenty-two million, two hundred twenty-two thousand, three hundred thirty-one".