2221201220322 has 16 divisors (see below), whose sum is σ = 5077031360832. Its totient is φ = 634628920080.

The previous prime is 2221201220317. The next prime is 2221201220419. The reversal of 2221201220322 is 2230221021222.

It is a super-2 number, since 2×2221201220322² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26442871629 + ... + 26442871712.

It is an arithmetic number, because the mean of its divisors is an integer number (317314460052).

Almost surely, 2^{2221201220322} is an apocalyptic number.

2221201220322 is an abundant number, since it is smaller than the sum of its proper divisors (2855830140510).

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

2221201220322 is a wasteful number, since it uses less digits than its factorization.

2221201220322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52885743353.

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 2221201220322 its reverse (2230221021222), we get a palindrome (4451422241544).

The spelling of 2221201220322 in words is "two trillion, two hundred twenty-one billion, two hundred one million, two hundred twenty thousand, three hundred twenty-two".