121210021112269 has 2 divisors, whose sum is σ = 121210021112270. Its totient is φ = 121210021112268.

The previous prime is 121210021112261. The next prime is 121210021112357. The reversal of 121210021112269 is 962211120012121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 120433877732169 + 776143380100 = 10974237^2 + 880990^2 .

It is a cyclic number.

It is not a de Polignac number, because 121210021112269 - 2³ = 121210021112261 is a prime.

It is a super-2 number, since 2×121210021112269² (a number of 29 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 121210021112269.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121210021112261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60605010556134 + 60605010556135.

It is an arithmetic number, because the mean of its divisors is an integer number (60605010556135).

Almost surely, 2^{121210021112269} is an apocalyptic number.

It is an amenable number.

121210021112269 is a deficient number, since it is larger than the sum of its proper divisors (1).

121210021112269 is an equidigital number, since it uses as much as digits as its factorization.

121210021112269 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728, while the sum is 31.

The spelling of 121210021112269 in words is "one hundred twenty-one trillion, two hundred ten billion, twenty-one million, one hundred twelve thousand, two hundred sixty-nine".