2223030121 has 4 divisors (see below), whose sum is σ = 2394032452. Its totient is φ = 2052027792.

The previous prime is 2223030113. The next prime is 2223030221. The reversal of 2223030121 is 1210303222.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1454354496 + 768675625 = 38136^2 + 27725^2 .

It is a cyclic number.

It is not a de Polignac number, because 2223030121 - 2³ = 2223030113 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2223030095 and 2223030104.

It is not an unprimeable number, because it can be changed into a prime (2223030101) 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, 85501146 + ... + 85501171.

It is an arithmetic number, because the mean of its divisors is an integer number (598508113).

Almost surely, 2^2223030121 is an apocalyptic number.

It is an amenable number.

2223030121 is a deficient number, since it is larger than the sum of its proper divisors (171002331).

2223030121 is a wasteful number, since it uses less digits than its factorization.

2223030121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171002330.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 2223030121 is about 47149.0203609789. The cubic root of 2223030121 is about 1305.1140020683.

Adding to 2223030121 its reverse (1210303222), we get a palindrome (3433333343).

The spelling of 2223030121 in words is "two billion, two hundred twenty-three million, thirty thousand, one hundred twenty-one".