121100211599 has 2 divisors, whose sum is σ = 121100211600. Its totient is φ = 121100211598.

The previous prime is 121100211541. The next prime is 121100211677. The reversal of 121100211599 is 995112001121.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121100211599 is a prime.

It is a super-2 number, since 2×121100211599² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121100271599) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60550105799 + 60550105800.

It is an arithmetic number, because the mean of its divisors is an integer number (60550105800).

Almost surely, 2^121100211599 is an apocalyptic number.

121100211599 is a deficient number, since it is larger than the sum of its proper divisors (1).

121100211599 is an equidigital number, since it uses as much as digits as its factorization.

121100211599 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1620, while the sum is 32.

The spelling of 121100211599 in words is "one hundred twenty-one billion, one hundred million, two hundred eleven thousand, five hundred ninety-nine".