213220222242344 has 32 divisors (see below), whose sum is σ = 401895592211520. Its totient is φ = 106049251330176.

The previous prime is 213220222242341. The next prime is 213220222242353. The reversal of 213220222242344 is 443242222022312.

It is a super-2 number, since 2×213220222242344² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (213220222242341) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 72750677 + ... + 75624740.

It is an arithmetic number, because the mean of its divisors is an integer number (12559237256610).

Almost surely, 2^{213220222242344} is an apocalyptic number.

It is an amenable number.

213220222242344 is a deficient number, since it is larger than the sum of its proper divisors (188675369969176).

213220222242344 is a wasteful number, since it uses less digits than its factorization.

213220222242344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148376369 (or 148376365 counting only the distinct ones).

The product of its (nonzero) digits is 147456, while the sum is 35.

Adding to 213220222242344 its reverse (443242222022312), we get a palindrome (656462444264656).

The spelling of 213220222242344 in words is "two hundred thirteen trillion, two hundred twenty billion, two hundred twenty-two million, two hundred forty-two thousand, three hundred forty-four".