4224121231331 has 2 divisors, whose sum is σ = 4224121231332. Its totient is φ = 4224121231330.

The previous prime is 4224121231277. The next prime is 4224121231357. The reversal of 4224121231331 is 1331321214224.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 4224121231331 - 2³⁴ = 4206941362147 is a prime.

It is a super-2 number, since 2×4224121231331² (a number of 26 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 4224121231294 and 4224121231303.

It is not a weakly prime, because it can be changed into another prime (4224121231391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2112060615665 + 2112060615666.

It is an arithmetic number, because the mean of its divisors is an integer number (2112060615666).

Almost surely, 2^{4224121231331} is an apocalyptic number.

4224121231331 is a deficient number, since it is larger than the sum of its proper divisors (1).

4224121231331 is an equidigital number, since it uses as much as digits as its factorization.

4224121231331 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6912, while the sum is 29.

Adding to 4224121231331 its reverse (1331321214224), we get a palindrome (5555442445555).

The spelling of 4224121231331 in words is "four trillion, two hundred twenty-four billion, one hundred twenty-one million, two hundred thirty-one thousand, three hundred thirty-one".