12010100132221 has 4 divisors (see below), whose sum is σ = 12010158004572. Its totient is φ = 12010042259872.

The previous prime is 12010100132131. The next prime is 12010100132231. The reversal of 12010100132221 is 12223100101021.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 19047036121 + 11991053096100 = 138011^2 + 3462810^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12010100132221 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12010100132195 and 12010100132204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12010100132231) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28623760 + ... + 29040313.

It is an arithmetic number, because the mean of its divisors is an integer number (3002539501143).

Almost surely, 2^{12010100132221} is an apocalyptic number.

It is an amenable number.

12010100132221 is a deficient number, since it is larger than the sum of its proper divisors (57872351).

12010100132221 is an equidigital number, since it uses as much as digits as its factorization.

12010100132221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57872350.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 12010100132221 its reverse (12223100101021), we get a palindrome (24233200233242).

The spelling of 12010100132221 in words is "twelve trillion, ten billion, one hundred million, one hundred thirty-two thousand, two hundred twenty-one".