1322233181 has 2 divisors, whose sum is σ = 1322233182. Its totient is φ = 1322233180.

The previous prime is 1322233127. The next prime is 1322233189. The reversal of 1322233181 is 1813322231.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 980316100 + 341917081 = 31310^2 + 18491^2 .

It is a cyclic number.

It is not a de Polignac number, because 1322233181 - 2²² = 1318038877 is a prime.

It is a super-2 number, since 2×1322233181² = 3496601169874757522, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1322233181.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1322233189) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 661116590 + 661116591.

It is an arithmetic number, because the mean of its divisors is an integer number (661116591).

Almost surely, 2^1322233181 is an apocalyptic number.

It is an amenable number.

1322233181 is a deficient number, since it is larger than the sum of its proper divisors (1).

1322233181 is an equidigital number, since it uses as much as digits as its factorization.

1322233181 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1728, while the sum is 26.

The square root of 1322233181 is about 36362.5244035669. The cubic root of 1322233181 is about 1097.5795763894.

The spelling of 1322233181 in words is "one billion, three hundred twenty-two million, two hundred thirty-three thousand, one hundred eighty-one".