1212202471231 has 2 divisors, whose sum is σ = 1212202471232. Its totient is φ = 1212202471230.

The previous prime is 1212202471219. The next prime is 1212202471243. The reversal of 1212202471231 is 1321742022121.

It is a balanced prime because it is at equal distance from previous prime (1212202471219) and next prime (1212202471243).

It is a cyclic number.

It is not a de Polignac number, because 1212202471231 - 2¹³ = 1212202463039 is a prime.

It is a super-2 number, since 2×1212202471231² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1212202471231.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1212202478231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 606101235615 + 606101235616.

It is an arithmetic number, because the mean of its divisors is an integer number (606101235616).

Almost surely, 2^{1212202471231} is an apocalyptic number.

1212202471231 is a deficient number, since it is larger than the sum of its proper divisors (1).

1212202471231 is an equidigital number, since it uses as much as digits as its factorization.

1212202471231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2688, while the sum is 28.

Adding to 1212202471231 its reverse (1321742022121), we get a palindrome (2533944493352).

The spelling of 1212202471231 in words is "one trillion, two hundred twelve billion, two hundred two million, four hundred seventy-one thousand, two hundred thirty-one".