121200122102002 has 32 divisors (see below), whose sum is σ = 192768119816832. Its totient is φ = 57036090084864.

The previous prime is 121200122101987. The next prime is 121200122102023. The reversal of 121200122102002 is 200201221002121.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 77733088 + ... + 79276939.

It is an arithmetic number, because the mean of its divisors is an integer number (6024003744276).

Almost surely, 2^{121200122102002} is an apocalyptic number.

121200122102002 is a deficient number, since it is larger than the sum of its proper divisors (71567997714830).

121200122102002 is a wasteful number, since it uses less digits than its factorization.

121200122102002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157010322.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 121200122102002 its reverse (200201221002121), we get a palindrome (321401343104123).

The spelling of 121200122102002 in words is "one hundred twenty-one trillion, two hundred billion, one hundred twenty-two million, one hundred two thousand, two".