12201021146121 has 32 divisors (see below), whose sum is σ = 16549447799808. Its totient is φ = 7994903394240.

The previous prime is 12201021146107. The next prime is 12201021146143. The reversal of 12201021146121 is 12164112010221.

It is not a de Polignac number, because 12201021146121 - 2⁵ = 12201021146089 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12201021146091 and 12201021146100.

It is not an unprimeable number, because it can be changed into a prime (12201021146221) 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, 15708406 + ... + 16466816.

It is an arithmetic number, because the mean of its divisors is an integer number (517170243744).

Almost surely, 2^{12201021146121} is an apocalyptic number.

It is an amenable number.

12201021146121 is a deficient number, since it is larger than the sum of its proper divisors (4348426653687).

12201021146121 is a wasteful number, since it uses less digits than its factorization.

12201021146121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 758941.

The product of its (nonzero) digits is 384, while the sum is 24.

Adding to 12201021146121 its reverse (12164112010221), we get a palindrome (24365133156342).

The spelling of 12201021146121 in words is "twelve trillion, two hundred one billion, twenty-one million, one hundred forty-six thousand, one hundred twenty-one".