12222512105 has 8 divisors (see below), whose sum is σ = 15063420552. Its totient is φ = 9513739008.

The previous prime is 12222512077. The next prime is 12222512149. The reversal of 12222512105 is 50121522221.

It can be written as a sum of positive squares in 4 ways, for example, as 7912458304 + 4310053801 = 88952^2 + 65651^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12222512105 - 2¹⁶ = 12222446569 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33033632 + ... + 33034001.

It is an arithmetic number, because the mean of its divisors is an integer number (1882927569).

Almost surely, 2^12222512105 is an apocalyptic number.

It is an amenable number.

12222512105 is a deficient number, since it is larger than the sum of its proper divisors (2840908447).

12222512105 is an equidigital number, since it uses as much as digits as its factorization.

12222512105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66067675.

The product of its (nonzero) digits is 800, while the sum is 23.

The spelling of 12222512105 in words is "twelve billion, two hundred twenty-two million, five hundred twelve thousand, one hundred five".