221213030322 has 8 divisors (see below), whose sum is σ = 442426060656. Its totient is φ = 73737676772.

The previous prime is 221213030287. The next prime is 221213030351. The reversal of 221213030322 is 223030312122.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

221213030322 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18434419188 + ... + 18434419199.

It is an arithmetic number, because the mean of its divisors is an integer number (55303257582).

Almost surely, 2^221213030322 is an apocalyptic number.

221213030322 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

221213030322 is a wasteful number, since it uses less digits than its factorization.

221213030322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36868838392.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 221213030322 its reverse (223030312122), we get a palindrome (444243342444).

The spelling of 221213030322 in words is "two hundred twenty-one billion, two hundred thirteen million, thirty thousand, three hundred twenty-two".