121200201020122 has 16 divisors (see below), whose sum is σ = 207772351880832. Its totient is φ = 51942798618480.

The previous prime is 121200201020081. The next prime is 121200201020179. The reversal of 121200201020122 is 221020102002121.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 121200201020096 and 121200201020105.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6770478 + ... + 16977625.

It is an arithmetic number, because the mean of its divisors is an integer number (12985771992552).

Almost surely, 2^{121200201020122} is an apocalyptic number.

121200201020122 is a deficient number, since it is larger than the sum of its proper divisors (86572150860710).

121200201020122 is a wasteful number, since it uses less digits than its factorization.

121200201020122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24112653.

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

Adding to 121200201020122 its reverse (221020102002121), we get a palindrome (342220303022243).

The spelling of 121200201020122 in words is "one hundred twenty-one trillion, two hundred billion, two hundred one million, twenty thousand, one hundred twenty-two".