12212020002001 has 4 divisors (see below), whose sum is σ = 12212426300400. Its totient is φ = 12211613703604.

The previous prime is 12212020001921. The next prime is 12212020002041. The reversal of 12212020002001 is 10020002021221.

It is a happy number.

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.

It is a cyclic number.

It is not a de Polignac number, because 12212020002001 - 2³⁵ = 12177660263633 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12212020002041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 203104111 + ... + 203164228.

It is an arithmetic number, because the mean of its divisors is an integer number (3053106575100).

Almost surely, 2^{12212020002001} is an apocalyptic number.

It is an amenable number.

12212020002001 is a deficient number, since it is larger than the sum of its proper divisors (406298399).

12212020002001 is an equidigital number, since it uses as much as digits as its factorization.

12212020002001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 406298398.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 12212020002001 its reverse (10020002021221), we get a palindrome (22232022023222).

The spelling of 12212020002001 in words is "twelve trillion, two hundred twelve billion, twenty million, two thousand, one".