2243012242121 has 4 divisors (see below), whose sum is σ = 2563442562432. Its totient is φ = 1922581921812.

The previous prime is 2243012242111. The next prime is 2243012242129. The reversal of 2243012242121 is 1212422103422.

It is a happy number.

2243012242121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 2243012242121 - 2²² = 2243008047817 is a prime.

It is a super-2 number, since 2×2243012242121² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2243012242129) 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, 160215160145 + ... + 160215160158.

It is an arithmetic number, because the mean of its divisors is an integer number (640860640608).

Almost surely, 2^{2243012242121} is an apocalyptic number.

It is an amenable number.

2243012242121 is a deficient number, since it is larger than the sum of its proper divisors (320430320311).

2243012242121 is an equidigital number, since it uses as much as digits as its factorization.

2243012242121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 320430320310.

The product of its (nonzero) digits is 3072, while the sum is 26.

Adding to 2243012242121 its reverse (1212422103422), we get a palindrome (3455434345543).

The spelling of 2243012242121 in words is "two trillion, two hundred forty-three billion, twelve million, two hundred forty-two thousand, one hundred twenty-one".