12212122001 has 8 divisors (see below), whose sum is σ = 12502467840. Its totient is φ = 11923047648.

The previous prime is 12212121949. The next prime is 12212122019. The reversal of 12212122001 is 10022121221.

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 12212122001 - 2¹⁸ = 12211859857 is a prime.

It is a super-3 number, since 3×12212122001³ (a number of 31 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12212122031) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 298421 + ... + 336866.

It is an arithmetic number, because the mean of its divisors is an integer number (1562808480).

Almost surely, 2^12212122001 is an apocalyptic number.

It is an amenable number.

12212122001 is a deficient number, since it is larger than the sum of its proper divisors (290345839).

12212122001 is an equidigital number, since it uses as much as digits as its factorization.

12212122001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 635743.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 12212122001 its reverse (10022121221), we get a palindrome (22234243222).

The spelling of 12212122001 in words is "twelve billion, two hundred twelve million, one hundred twenty-two thousand, one".