12200000122121 has 24 divisors (see below), whose sum is σ = 14278740505344. Its totient is φ = 10393261774560.

The previous prime is 12200000122103. The next prime is 12200000122129. The reversal of 12200000122121 is 12122100000221.

It is not a de Polignac number, because 12200000122121 - 2³⁸ = 11925122215177 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12200000122096 and 12200000122105.

It is not an unprimeable number, because it can be changed into a prime (12200000122129) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5787566 + ... + 7608936.

It is an arithmetic number, because the mean of its divisors is an integer number (594947521056).

Almost surely, 2^{12200000122121} is an apocalyptic number.

It is an amenable number.

12200000122121 is a deficient number, since it is larger than the sum of its proper divisors (2078740383223).

12200000122121 is a wasteful number, since it uses less digits than its factorization.

12200000122121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1822221 (or 1822214 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 12200000122121 its reverse (12122100000221), we get a palindrome (24322100122342).

The spelling of 12200000122121 in words is "twelve trillion, two hundred billion, one hundred twenty-two thousand, one hundred twenty-one".