12102011233221 has 32 divisors (see below), whose sum is σ = 19861958995200. Its totient is φ = 6382755800064.

The previous prime is 12102011233127. The next prime is 12102011233259. The reversal of 12102011233221 is 12233211020121.

It is not a de Polignac number, because 12102011233221 - 2⁷ = 12102011233093 is a prime.

It is a super-3 number, since 3×12102011233221³ (a number of 40 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12102011233321) 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, 89010 + ... + 4920563.

It is an arithmetic number, because the mean of its divisors is an integer number (620686218600).

Almost surely, 2^{12102011233221} is an apocalyptic number.

It is an amenable number.

12102011233221 is a deficient number, since it is larger than the sum of its proper divisors (7759947761979).

12102011233221 is a wasteful number, since it uses less digits than its factorization.

12102011233221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5018445.

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 12102011233221 its reverse (12233211020121), we get a palindrome (24335222253342).

The spelling of 12102011233221 in words is "twelve trillion, one hundred two billion, eleven million, two hundred thirty-three thousand, two hundred twenty-one".