1225536355231 has 2 divisors, whose sum is σ = 1225536355232. Its totient is φ = 1225536355230.

The previous prime is 1225536355171. The next prime is 1225536355237. The reversal of 1225536355231 is 1325536355221.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1225536355231 - 2²³ = 1225527966623 is a prime.

It is a super-2 number, since 2×1225536355231² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1225536355237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 612768177615 + 612768177616.

It is an arithmetic number, because the mean of its divisors is an integer number (612768177616).

Almost surely, 2^{1225536355231} is an apocalyptic number.

1225536355231 is a deficient number, since it is larger than the sum of its proper divisors (1).

1225536355231 is an equidigital number, since it uses as much as digits as its factorization.

1225536355231 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 810000, while the sum is 43.

The spelling of 1225536355231 in words is "one trillion, two hundred twenty-five billion, five hundred thirty-six million, three hundred fifty-five thousand, two hundred thirty-one".