1210121222099 has 2 divisors, whose sum is σ = 1210121222100. Its totient is φ = 1210121222098.

The previous prime is 1210121222053. The next prime is 1210121222113. The reversal of 1210121222099 is 9902221210121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1210121222099 - 2²⁴ = 1210104444883 is a prime.

It is not a weakly prime, because it can be changed into another prime (1210121222039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 605060611049 + 605060611050.

It is an arithmetic number, because the mean of its divisors is an integer number (605060611050).

Almost surely, 2^{1210121222099} is an apocalyptic number.

1210121222099 is a deficient number, since it is larger than the sum of its proper divisors (1).

1210121222099 is an equidigital number, since it uses as much as digits as its factorization.

1210121222099 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2592, while the sum is 32.

The spelling of 1210121222099 in words is "one trillion, two hundred ten billion, one hundred twenty-one million, two hundred twenty-two thousand, ninety-nine".