12011102213 has 4 divisors (see below), whose sum is σ = 13103020608. Its totient is φ = 10919183820.

The previous prime is 12011102189. The next prime is 12011102221. The reversal of 12011102213 is 31220111021.

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, and also an emirpimes, since its reverse is a distinct semiprime: 31220111021 = 11 ⋅2838191911.

It is a cyclic number.

It is not a de Polignac number, because 12011102213 - 2⁸ = 12011101957 is a prime.

It is a super-2 number, since 2×12011102213² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12011102513) 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, 545959181 + ... + 545959202.

It is an arithmetic number, because the mean of its divisors is an integer number (3275755152).

Almost surely, 2^12011102213 is an apocalyptic number.

It is an amenable number.

12011102213 is a deficient number, since it is larger than the sum of its proper divisors (1091918395).

12011102213 is a wasteful number, since it uses less digits than its factorization.

12011102213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1091918394.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 12011102213 its reverse (31220111021), we get a palindrome (43231213234).

The spelling of 12011102213 in words is "twelve billion, eleven million, one hundred two thousand, two hundred thirteen".