22220201202221 has 64 divisors (see below), whose sum is σ = 24986003558400. Its totient is φ = 19591196232960.

The previous prime is 22220201202193. The next prime is 22220201202229. The reversal of 22220201202221 is 12220210202222.

It is not a de Polignac number, because 22220201202221 - 2¹⁴ = 22220201185837 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22220201202193 and 22220201202202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22220201202229) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 6972135590 + ... + 6972138776.

It is an arithmetic number, because the mean of its divisors is an integer number (390406305600).

Almost surely, 2^{22220201202221} is an apocalyptic number.

It is an amenable number.

22220201202221 is a deficient number, since it is larger than the sum of its proper divisors (2765802356179).

22220201202221 is a wasteful number, since it uses less digits than its factorization.

22220201202221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3954.

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 22220201202221 its reverse (12220210202222), we get a palindrome (34440411404443).

Subtracting from 22220201202221 its reverse (12220210202222), we obtain a palindrome (9999990999999).

It can be divided in two parts, 22220201 and 202221, that added together give a palindrome (22422422).

The spelling of 22220201202221 in words is "twenty-two trillion, two hundred twenty billion, two hundred one million, two hundred two thousand, two hundred twenty-one".