221322033222020 has 72 divisors (see below), whose sum is σ = 475241280241560. Its totient is φ = 86556085678080.

The previous prime is 221322033222011. The next prime is 221322033222047. The reversal of 221322033222020 is 20222330223122.

It can be written as a sum of positive squares in 4 ways, for example, as 998656451584 + 220323376770436 = 999328^2 + 14843294^2 .

It is a super-2 number, since 2×221322033222020² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 30772196 + ... + 37276964.

Almost surely, 2^{221322033222020} is an apocalyptic number.

221322033222020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

221322033222020 is an abundant number, since it is smaller than the sum of its proper divisors (253919247019540).

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

221322033222020 is a wasteful number, since it uses less digits than its factorization.

221322033222020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6505173 (or 6505004 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 26.

Adding to 221322033222020 its reverse (20222330223122), we get a palindrome (241544363445142).

The spelling of 221322033222020 in words is "two hundred twenty-one trillion, three hundred twenty-two billion, thirty-three million, two hundred twenty-two thousand, twenty".