2012221222001 has 4 divisors (see below), whose sum is σ = 2012228019312. Its totient is φ = 2012214424692.

The previous prime is 2012221221977. The next prime is 2012221222027. The reversal of 2012221222001 is 1002221222102.

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 2012221222001 - 2²² = 2012217027697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2012221222901) 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, 2933375 + ... + 3553748.

It is an arithmetic number, because the mean of its divisors is an integer number (503057004828).

Almost surely, 2^{2012221222001} is an apocalyptic number.

It is an amenable number.

2012221222001 is a deficient number, since it is larger than the sum of its proper divisors (6797311).

2012221222001 is an equidigital number, since it uses as much as digits as its factorization.

2012221222001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6797310.

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

Adding to 2012221222001 its reverse (1002221222102), we get a palindrome (3014442444103).

The spelling of 2012221222001 in words is "two trillion, twelve billion, two hundred twenty-one million, two hundred twenty-two thousand, one".