2220002220121 has 4 divisors (see below), whose sum is σ = 2537145394432. Its totient is φ = 1902859045812.

The previous prime is 2220002220119. The next prime is 2220002220127. The reversal of 2220002220121 is 1210222000222.

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 2220002220121 - 2¹ = 2220002220119 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2220002220095 and 2220002220104.

It is not an unprimeable number, because it can be changed into a prime (2220002220127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 158571587145 + ... + 158571587158.

It is an arithmetic number, because the mean of its divisors is an integer number (634286348608).

Almost surely, 2^{2220002220121} is an apocalyptic number.

It is an amenable number.

2220002220121 is a deficient number, since it is larger than the sum of its proper divisors (317143174311).

2220002220121 is an equidigital number, since it uses as much as digits as its factorization.

2220002220121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 317143174310.

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

Adding to 2220002220121 its reverse (1210222000222), we get a palindrome (3430224220343).

The spelling of 2220002220121 in words is "two trillion, two hundred twenty billion, two million, two hundred twenty thousand, one hundred twenty-one".