2243243102421 has 16 divisors (see below), whose sum is σ = 3167059751424. Its totient is φ = 1407468056064.

The previous prime is 2243243102407. The next prime is 2243243102453. The reversal of 2243243102421 is 1242013423422.

It is not a de Polignac number, because 2243243102421 - 2⁷ = 2243243102293 is a prime.

It is a super-2 number, since 2×2243243102421² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2243243102461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 398140 + ... + 2155226.

It is an arithmetic number, because the mean of its divisors is an integer number (197941234464).

Almost surely, 2^{2243243102421} is an apocalyptic number.

It is an amenable number.

2243243102421 is a deficient number, since it is larger than the sum of its proper divisors (923816649003).

2243243102421 is a wasteful number, since it uses less digits than its factorization.

2243243102421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1782140.

The product of its (nonzero) digits is 18432, while the sum is 30.

Adding to 2243243102421 its reverse (1242013423422), we get a palindrome (3485256525843).

The spelling of 2243243102421 in words is "two trillion, two hundred forty-three billion, two hundred forty-three million, one hundred two thousand, four hundred twenty-one".