12212212202 has 4 divisors (see below), whose sum is σ = 18318318306. Its totient is φ = 6106106100.

The previous prime is 12212212031. The next prime is 12212212211. The reversal of 12212212202 is 20221221221.

It is a happy number.

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., 12175136281 + 37075921 = 110341^2 + 6089^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3053053049 + ... + 3053053052.

Almost surely, 2^12212212202 is an apocalyptic number.

12212212202 is a deficient number, since it is larger than the sum of its proper divisors (6106106104).

12212212202 is an equidigital number, since it uses as much as digits as its factorization.

12212212202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6106106103.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 12212212202 its reverse (20221221221), we get a palindrome (32433433423).

The spelling of 12212212202 in words is "twelve billion, two hundred twelve million, two hundred twelve thousand, two hundred two".