121100102193 has 48 divisors (see below), whose sum is σ = 192128661504. Its totient is φ = 67620540960.

The previous prime is 121100102171. The next prime is 121100102231. The reversal of 121100102193 is 391201001121.

It is a happy number.

It is not a de Polignac number, because 121100102193 - 2⁵ = 121100102161 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (121100102593) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4456578 + ... + 4483668.

It is an arithmetic number, because the mean of its divisors is an integer number (4002680448).

Almost surely, 2^121100102193 is an apocalyptic number.

It is an amenable number.

121100102193 is a deficient number, since it is larger than the sum of its proper divisors (71028559311).

121100102193 is a wasteful number, since it uses less digits than its factorization.

121100102193 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27802 (or 27795 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 21.

The spelling of 121100102193 in words is "one hundred twenty-one billion, one hundred million, one hundred two thousand, one hundred ninety-three".