2242002121 has 4 divisors (see below), whose sum is σ = 2253740544. Its totient is φ = 2230263700.

The previous prime is 2242002101. The next prime is 2242002187. The reversal of 2242002121 is 1212002422.

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, and also an emirpimes, since its reverse is a distinct semiprime: 1212002422 = 2 ⋅606001211.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2242002121 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2242002095 and 2242002104.

It is not an unprimeable number, because it can be changed into a prime (2242002101) 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, 5868925 + ... + 5869306.

It is an arithmetic number, because the mean of its divisors is an integer number (563435136).

Almost surely, 2^2242002121 is an apocalyptic number.

It is an amenable number.

2242002121 is a deficient number, since it is larger than the sum of its proper divisors (11738423).

2242002121 is a wasteful number, since it uses less digits than its factorization.

2242002121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11738422.

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

The square root of 2242002121 is about 47349.7848041572. The cubic root of 2242002121 is about 1308.8162336186.

Adding to 2242002121 its reverse (1212002422), we get a palindrome (3454004543).

The spelling of 2242002121 in words is "two billion, two hundred forty-two million, two thousand, one hundred twenty-one".