121110122121201 has 64 divisors (see below), whose sum is σ = 183519913973760. Its totient is φ = 78916701695040.

The previous prime is 121110122121173. The next prime is 121110122121211. The reversal of 121110122121201 is 102121221011121.

It is a happy number.

121110122121201 is a `hidden beast` number, since 1 + 211 + 10 + 1 + 221 + 21 + 201 = 666.

It is not a de Polignac number, because 121110122121201 - 2⁶ = 121110122121137 is a prime.

It is not an unprimeable number, because it can be changed into a prime (121110122121211) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 167911506 + ... + 168631236.

It is an arithmetic number, because the mean of its divisors is an integer number (2867498655840).

Almost surely, 2^{121110122121201} is an apocalyptic number.

It is an amenable number.

121110122121201 is a deficient number, since it is larger than the sum of its proper divisors (62409791852559).

121110122121201 is a wasteful number, since it uses less digits than its factorization.

121110122121201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 720531 (or 720525 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 18.

Adding to 121110122121201 its reverse (102121221011121), we get a palindrome (223231343132322).

The spelling of 121110122121201 in words is "one hundred twenty-one trillion, one hundred ten billion, one hundred twenty-two million, one hundred twenty-one thousand, two hundred one".