31534541223222 has 64 divisors (see below), whose sum is σ = 63863697832704. Its totient is φ = 10379589611520.

The previous prime is 31534541223203. The next prime is 31534541223313. The reversal of 31534541223222 is 22232214543513.

It is a super-2 number, since 2×31534541223222² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 616714597 + ... + 616765727.

It is an arithmetic number, because the mean of its divisors is an integer number (997870278636).

Almost surely, 2^{31534541223222} is an apocalyptic number.

31534541223222 is an abundant number, since it is smaller than the sum of its proper divisors (32329156609482).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31534541223222 is a wasteful number, since it uses less digits than its factorization.

31534541223222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53613.

The product of its digits is 345600, while the sum is 39.

Adding to 31534541223222 its reverse (22232214543513), we get a palindrome (53766755766735).

The spelling of 31534541223222 in words is "thirty-one trillion, five hundred thirty-four billion, five hundred forty-one million, two hundred twenty-three thousand, two hundred twenty-two".