121202110100231 has 2 divisors, whose sum is σ = 121202110100232. Its totient is φ = 121202110100230.

The previous prime is 121202110100119. The next prime is 121202110100237. The reversal of 121202110100231 is 132001011202121.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 121202110100231 - 2³⁰ = 121201036358407 is a prime.

It is a super-2 number, since 2×121202110100231² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121202110100237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60601055050115 + 60601055050116.

It is an arithmetic number, because the mean of its divisors is an integer number (60601055050116).

Almost surely, 2^{121202110100231} is an apocalyptic number.

121202110100231 is a deficient number, since it is larger than the sum of its proper divisors (1).

121202110100231 is an equidigital number, since it uses as much as digits as its factorization.

121202110100231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 121202110100231 its reverse (132001011202121), we get a palindrome (253203121302352).

The spelling of 121202110100231 in words is "one hundred twenty-one trillion, two hundred two billion, one hundred ten million, one hundred thousand, two hundred thirty-one".