22022020201221 has 32 divisors (see below), whose sum is σ = 34546723430400. Its totient is φ = 13816786959360.

The previous prime is 22022020201193. The next prime is 22022020201267. The reversal of 22022020201221 is 12210202022022.

22022020201221 is a `hidden beast` number, since 2 + 2 + 0 + 220 + 20 + 201 + 221 = 666.

It is not a de Polignac number, because 22022020201221 - 2⁶ = 22022020201157 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22022020201194 and 22022020201203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22022020201121) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5053165 + ... + 8341373.

It is an arithmetic number, because the mean of its divisors is an integer number (1079585107200).

Almost surely, 2^{22022020201221} is an apocalyptic number.

It is an amenable number.

22022020201221 is a deficient number, since it is larger than the sum of its proper divisors (12524703229179).

22022020201221 is a wasteful number, since it uses less digits than its factorization.

22022020201221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3302826 (or 3302820 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 22022020201221 its reverse (12210202022022), we get a palindrome (34232222223243).

The spelling of 22022020201221 in words is "twenty-two trillion, twenty-two billion, twenty million, two hundred one thousand, two hundred twenty-one".