121023112210209 has 32 divisors (see below), whose sum is σ = 198799349777280. Its totient is φ = 72144925300800.

The previous prime is 121023112210151. The next prime is 121023112210223. The reversal of 121023112210209 is 902012211320121.

121023112210209 is a `hidden beast` number, since 1 + 2 + 1 + 0 + 231 + 1 + 221 + 0 + 209 = 666.

121023112210209 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 121023112210209 - 2¹³ = 121023112202017 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (121023112210409) 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, 3340024722 + ... + 3340060955.

It is an arithmetic number, because the mean of its divisors is an integer number (6212479680540).

Almost surely, 2^{121023112210209} is an apocalyptic number.

It is an amenable number.

121023112210209 is a deficient number, since it is larger than the sum of its proper divisors (77776237567071).

121023112210209 is a wasteful number, since it uses less digits than its factorization.

121023112210209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6680085758 (or 6680085752 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 27.

The spelling of 121023112210209 in words is "one hundred twenty-one trillion, twenty-three billion, one hundred twelve million, two hundred ten thousand, two hundred nine".