22001133333221 has 32 divisors (see below), whose sum is σ = 27440628326400. Its totient is φ = 17213773112640.

The previous prime is 22001133333191. The next prime is 22001133333227. The reversal of 22001133333221 is 12233333110022.

It is not a de Polignac number, because 22001133333221 - 2¹⁸ = 22001133071077 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22001133333227) 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, 10706915 + ... + 12595248.

It is an arithmetic number, because the mean of its divisors is an integer number (857519635200).

Almost surely, 2^{22001133333221} is an apocalyptic number.

It is an amenable number.

22001133333221 is a deficient number, since it is larger than the sum of its proper divisors (5439494993179).

22001133333221 is a wasteful number, since it uses less digits than its factorization.

22001133333221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23302449.

The product of its (nonzero) digits is 3888, while the sum is 26.

Adding to 22001133333221 its reverse (12233333110022), we get a palindrome (34234466443243).

The spelling of 22001133333221 in words is "twenty-two trillion, one billion, one hundred thirty-three million, three hundred thirty-three thousand, two hundred twenty-one".