12021010112213 has 4 divisors (see below), whose sum is σ = 12028603929408. Its totient is φ = 12013416295020.

The previous prime is 12021010112131. The next prime is 12021010112257. The reversal of 12021010112213 is 31221101012021.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12021010112213 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12021010112191 and 12021010112200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12021010112263) 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, 3796906223 + ... + 3796909388.

It is an arithmetic number, because the mean of its divisors is an integer number (3007150982352).

Almost surely, 2^{12021010112213} is an apocalyptic number.

It is an amenable number.

12021010112213 is a deficient number, since it is larger than the sum of its proper divisors (7593817195).

12021010112213 is an equidigital number, since it uses as much as digits as its factorization.

12021010112213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7593817194.

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 12021010112213 its reverse (31221101012021), we get a palindrome (43242111124234).

The spelling of 12021010112213 in words is "twelve trillion, twenty-one billion, ten million, one hundred twelve thousand, two hundred thirteen".