1212232193 has 2 divisors, whose sum is σ = 1212232194. Its totient is φ = 1212232192.

The previous prime is 1212232187. The next prime is 1212232207. The reversal of 1212232193 is 3912322121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 782209024 + 430023169 = 27968^2 + 20737^2 .

It is a cyclic number.

It is not a de Polignac number, because 1212232193 - 2¹² = 1212228097 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (1212232093) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 606116096 + 606116097.

It is an arithmetic number, because the mean of its divisors is an integer number (606116097).

Almost surely, 2^1212232193 is an apocalyptic number.

It is an amenable number.

1212232193 is a deficient number, since it is larger than the sum of its proper divisors (1).

1212232193 is an equidigital number, since it uses as much as digits as its factorization.

1212232193 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1296, while the sum is 26.

The square root of 1212232193 is about 34817.1249961854. The cubic root of 1212232193 is about 1066.2571041666.

The spelling of 1212232193 in words is "one billion, two hundred twelve million, two hundred thirty-two thousand, one hundred ninety-three".