1232222081 has 2 divisors, whose sum is σ = 1232222082. Its totient is φ = 1232222080.

The previous prime is 1232222071. The next prime is 1232222149. The reversal of 1232222081 is 1802222321.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1086295681 + 145926400 = 32959^2 + 12080^2 .

It is a cyclic number.

It is not a de Polignac number, because 1232222081 - 2¹⁰ = 1232221057 is a prime.

It is a super-2 number, since 2×1232222081² = 3036742513807941122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1232222041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 616111040 + 616111041.

It is an arithmetic number, because the mean of its divisors is an integer number (616111041).

Almost surely, 2^1232222081 is an apocalyptic number.

It is an amenable number.

1232222081 is a deficient number, since it is larger than the sum of its proper divisors (1).

1232222081 is an equidigital number, since it uses as much as digits as its factorization.

1232222081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 768, while the sum is 23.

The square root of 1232222081 is about 35103.0209668627. The cubic root of 1232222081 is about 1072.0860927297.

The spelling of 1232222081 in words is "one billion, two hundred thirty-two million, two hundred twenty-two thousand, eighty-one".