213222311441 has 2 divisors, whose sum is σ = 213222311442. Its totient is φ = 213222311440.

The previous prime is 213222311431. The next prime is 213222311551. The reversal of 213222311441 is 144113222312.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 158499534400 + 54722777041 = 398120^2 + 233929^2 .

It is a cyclic number.

It is not a de Polignac number, because 213222311441 - 2⁶ = 213222311377 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 213222311441.

It is not a weakly prime, because it can be changed into another prime (213222311411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106611155720 + 106611155721.

It is an arithmetic number, because the mean of its divisors is an integer number (106611155721).

Almost surely, 2^213222311441 is an apocalyptic number.

It is an amenable number.

213222311441 is a deficient number, since it is larger than the sum of its proper divisors (1).

213222311441 is an equidigital number, since it uses as much as digits as its factorization.

213222311441 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2304, while the sum is 26.

Adding to 213222311441 its reverse (144113222312), we get a palindrome (357335533753).

The spelling of 213222311441 in words is "two hundred thirteen billion, two hundred twenty-two million, three hundred eleven thousand, four hundred forty-one".