222211331012213 has 4 divisors (see below), whose sum is σ = 223133369730348. Its totient is φ = 221289292294080.

The previous prime is 222211331012207. The next prime is 222211331012263. The reversal of 222211331012213 is 312210133112222.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 141556526449009 + 80654804563204 = 11897753^2 + 8980802^2 .

It is a cyclic number.

It is not a de Polignac number, because 222211331012213 - 2¹⁸ = 222211330750069 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222211331012263) 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, 461019358706 + ... + 461019359187.

It is an arithmetic number, because the mean of its divisors is an integer number (55783342432587).

Almost surely, 2^{222211331012213} is an apocalyptic number.

It is an amenable number.

222211331012213 is a deficient number, since it is larger than the sum of its proper divisors (922038718135).

222211331012213 is an equidigital number, since it uses as much as digits as its factorization.

222211331012213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 922038718134.

The product of its (nonzero) digits is 1728, while the sum is 26.

Adding to 222211331012213 its reverse (312210133112222), we get a palindrome (534421464124435).

The spelling of 222211331012213 in words is "two hundred twenty-two trillion, two hundred eleven billion, three hundred thirty-one million, twelve thousand, two hundred thirteen".