12010201021121 has 32 divisors (see below), whose sum is σ = 12677256345600. Its totient is φ = 11363968535040.

The previous prime is 12010201021109. The next prime is 12010201021129. The reversal of 12010201021121 is 12112010201021.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12010201021121 is a prime.

It is a super-2 number, since 2×12010201021121² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12010201021096 and 12010201021105.

It is not an unprimeable number, because it can be changed into a prime (12010201021129) 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, 151227995 + ... + 151307391.

It is an arithmetic number, because the mean of its divisors is an integer number (396164260800).

Almost surely, 2^{12010201021121} is an apocalyptic number.

It is an amenable number.

12010201021121 is a deficient number, since it is larger than the sum of its proper divisors (667055324479).

12010201021121 is a wasteful number, since it uses less digits than its factorization.

12010201021121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80129.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 12010201021121 its reverse (12112010201021), we get a palindrome (24122211222142).

It can be divided in two parts, 12010201021 and 121, that multiplied together give a palindrome (1453234323541).

The spelling of 12010201021121 in words is "twelve trillion, ten billion, two hundred one million, twenty-one thousand, one hundred twenty-one".