201224121331 has 2 divisors, whose sum is σ = 201224121332. Its totient is φ = 201224121330.

The previous prime is 201224121317. The next prime is 201224121341. The reversal of 201224121331 is 133121422102.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 201224121331 - 2⁵ = 201224121299 is a prime.

It is a super-2 number, since 2×201224121331² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (201224121341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100612060665 + 100612060666.

It is an arithmetic number, because the mean of its divisors is an integer number (100612060666).

Almost surely, 2^201224121331 is an apocalyptic number.

201224121331 is a deficient number, since it is larger than the sum of its proper divisors (1).

201224121331 is an equidigital number, since it uses as much as digits as its factorization.

201224121331 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 201224121331 its reverse (133121422102), we get a palindrome (334345543433).

The spelling of 201224121331 in words is "two hundred one billion, two hundred twenty-four million, one hundred twenty-one thousand, three hundred thirty-one".