12100002021121 has 16 divisors (see below), whose sum is σ = 14220967132800. Its totient is φ = 10081085528448.

The previous prime is 12100002021101. The next prime is 12100002021137. The reversal of 12100002021121 is 12112020000121.

It is a cyclic number.

It is not a de Polignac number, because 12100002021121 - 2¹¹ = 12100002019073 is a prime.

It is a super-2 number, since 2×12100002021121² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12100002021101) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 164557770 + ... + 164631283.

It is an arithmetic number, because the mean of its divisors is an integer number (888810445800).

Almost surely, 2^{12100002021121} is an apocalyptic number.

It is an amenable number.

12100002021121 is a deficient number, since it is larger than the sum of its proper divisors (2120965111679).

12100002021121 is an equidigital number, since it uses as much as digits as its factorization.

12100002021121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 329189208.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 12100002021121 its reverse (12112020000121), we get a palindrome (24212022021242).

The spelling of 12100002021121 in words is "twelve trillion, one hundred billion, two million, twenty-one thousand, one hundred twenty-one".