12310221122 has 4 divisors (see below), whose sum is σ = 18465331686. Its totient is φ = 6155110560.

The previous prime is 12310221103. The next prime is 12310221137. The reversal of 12310221122 is 22112201321.

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

It can be written as a sum of positive squares in only one way, i.e., 12310124401 + 96721 = 110951^2 + 311^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 12310221122.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3077555279 + ... + 3077555282.

Almost surely, 2^12310221122 is an apocalyptic number.

12310221122 is a deficient number, since it is larger than the sum of its proper divisors (6155110564).

12310221122 is an equidigital number, since it uses as much as digits as its factorization.

12310221122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6155110563.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 12310221122 its reverse (22112201321), we get a palindrome (34422422443).

The spelling of 12310221122 in words is "twelve billion, three hundred ten million, two hundred twenty-one thousand, one hundred twenty-two".