221312033322 has 16 divisors (see below), whose sum is σ = 454586879712. Its totient is φ = 71776875600.

The previous prime is 221312033321. The next prime is 221312033329. The reversal of 221312033322 is 223330213122.

221312033322 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 221312033292 and 221312033301.

It is not an unprimeable number, because it can be changed into a prime (221312033321) 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, 498450304 + ... + 498450747.

It is an arithmetic number, because the mean of its divisors is an integer number (28411679982).

Almost surely, 2^221312033322 is an apocalyptic number.

221312033322 is an abundant number, since it is smaller than the sum of its proper divisors (233274846390).

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

221312033322 is a wasteful number, since it uses less digits than its factorization.

221312033322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 996901093.

The product of its (nonzero) digits is 2592, while the sum is 24.

Adding to 221312033322 its reverse (223330213122), we get a palindrome (444642246444).

The spelling of 221312033322 in words is "two hundred twenty-one billion, three hundred twelve million, thirty-three thousand, three hundred twenty-two".