2220301212121 has 4 divisors (see below), whose sum is σ = 2226351079552. Its totient is φ = 2214251344692.

The previous prime is 2220301212091. The next prime is 2220301212161. The reversal of 2220301212121 is 1212121030222.

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 2220301212121 - 2²⁷ = 2220166994393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2220301212161) 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, 3024933165 + ... + 3024933898.

It is an arithmetic number, because the mean of its divisors is an integer number (556587769888).

Almost surely, 2^{2220301212121} is an apocalyptic number.

It is an amenable number.

2220301212121 is a deficient number, since it is larger than the sum of its proper divisors (6049867431).

2220301212121 is an equidigital number, since it uses as much as digits as its factorization.

2220301212121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6049867430.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 2220301212121 its reverse (1212121030222), we get a palindrome (3432422242343).

The spelling of 2220301212121 in words is "two trillion, two hundred twenty billion, three hundred one million, two hundred twelve thousand, one hundred twenty-one".