121100142322109 has 32 divisors (see below), whose sum is σ = 125902110523392. Its totient is φ = 116355881304000.

The previous prime is 121100142322043. The next prime is 121100142322151. The reversal of 121100142322109 is 901223241001121.

It is a cyclic number.

It is not a de Polignac number, because 121100142322109 - 2¹⁶ = 121100142256573 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121100142322189) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 21204714764 + ... + 21204720474.

It is an arithmetic number, because the mean of its divisors is an integer number (3934440953856).

Almost surely, 2^{121100142322109} is an apocalyptic number.

It is an amenable number.

121100142322109 is a deficient number, since it is larger than the sum of its proper divisors (4801968201283).

121100142322109 is a wasteful number, since it uses less digits than its factorization.

121100142322109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9977.

The product of its (nonzero) digits is 1728, while the sum is 29.

The spelling of 121100142322109 in words is "one hundred twenty-one trillion, one hundred billion, one hundred forty-two million, three hundred twenty-two thousand, one hundred nine".