12212002997 has 4 divisors (see below), whose sum is σ = 12471832896. Its totient is φ = 11952173100.

The previous prime is 12212002969. The next prime is 12212003029. The reversal of 12212002997 is 79920021221.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 79920021221 = 276763 ⋅288767.

It is a cyclic number.

It is not a de Polignac number, because 12212002997 - 2¹² = 12211998901 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12212002937) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 129914879 + ... + 129914972.

It is an arithmetic number, because the mean of its divisors is an integer number (3117958224).

Almost surely, 2^12212002997 is an apocalyptic number.

It is an amenable number.

12212002997 is a deficient number, since it is larger than the sum of its proper divisors (259829899).

12212002997 is an equidigital number, since it uses as much as digits as its factorization.

12212002997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 259829898.

The product of its (nonzero) digits is 9072, while the sum is 35.

The spelling of 12212002997 in words is "twelve billion, two hundred twelve million, two thousand, nine hundred ninety-seven".