12213020105 has 64 divisors (see below), whose sum is σ = 17498799360. Its totient is φ = 8066150400.

The previous prime is 12213020087. The next prime is 12213020107. The reversal of 12213020105 is 50102031221.

It is a happy number.

It is not a de Polignac number, because 12213020105 - 2²⁶ = 12145911241 is a prime.

It is a super-2 number, since 2×12213020105² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12213020107) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 17881094 + ... + 17881776.

It is an arithmetic number, because the mean of its divisors is an integer number (273418740).

Almost surely, 2^12213020105 is an apocalyptic number.

It is an amenable number.

12213020105 is a deficient number, since it is larger than the sum of its proper divisors (5285779255).

12213020105 is a wasteful number, since it uses less digits than its factorization.

12213020105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1082.

The product of its (nonzero) digits is 120, while the sum is 17.

Adding to 12213020105 its reverse (50102031221), we get a palindrome (62315051326).

The spelling of 12213020105 in words is "twelve billion, two hundred thirteen million, twenty thousand, one hundred five".