12212002106 has 4 divisors (see below), whose sum is σ = 18318003162. Its totient is φ = 6106001052.

The previous prime is 12212002097. The next prime is 12212002147. The reversal of 12212002106 is 60120021221.

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., 11385957025 + 826045081 = 106705^2 + 28741^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3053000525 + ... + 3053000528.

Almost surely, 2^12212002106 is an apocalyptic number.

12212002106 is a deficient number, since it is larger than the sum of its proper divisors (6106001056).

12212002106 is an equidigital number, since it uses as much as digits as its factorization.

12212002106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6106001055.

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

Adding to 12212002106 its reverse (60120021221), we get a palindrome (72332023327).

The spelling of 12212002106 in words is "twelve billion, two hundred twelve million, two thousand, one hundred six".