2220002012221 has 4 divisors (see below), whose sum is σ = 2537145156832. Its totient is φ = 1902858867612.

The previous prime is 2220002012201. The next prime is 2220002012303. The reversal of 2220002012221 is 1222102000222.

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 2220002012221 - 2⁷ = 2220002012093 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2220002012195 and 2220002012204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2220002012201) 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, 158571572295 + ... + 158571572308.

It is an arithmetic number, because the mean of its divisors is an integer number (634286289208).

Almost surely, 2^{2220002012221} is an apocalyptic number.

It is an amenable number.

2220002012221 is a deficient number, since it is larger than the sum of its proper divisors (317143144611).

2220002012221 is an equidigital number, since it uses as much as digits as its factorization.

2220002012221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 317143144610.

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 2220002012221 its reverse (1222102000222), we get a palindrome (3442104012443).

The spelling of 2220002012221 in words is "two trillion, two hundred twenty billion, two million, twelve thousand, two hundred twenty-one".