22112221221201 has 16 divisors (see below), whose sum is σ = 30454826192064. Its totient is φ = 14260154526144.

The previous prime is 22112221221197. The next prime is 22112221221253. The reversal of 22112221221201 is 10212212221122.

It is not a de Polignac number, because 22112221221201 - 2² = 22112221221197 is a prime.

It is a super-3 number, since 3×22112221221201³ (a number of 41 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (22112221291201) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 575729931 + ... + 575768336.

It is an arithmetic number, because the mean of its divisors is an integer number (1903426637004).

Almost surely, 2^{22112221221201} is an apocalyptic number.

It is an amenable number.

22112221221201 is a deficient number, since it is larger than the sum of its proper divisors (8342604970863).

22112221221201 is a wasteful number, since it uses less digits than its factorization.

22112221221201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1151498480.

The product of its (nonzero) digits is 256, while the sum is 21.

Adding to 22112221221201 its reverse (10212212221122), we get a palindrome (32324433442323).

The spelling of 22112221221201 in words is "twenty-two trillion, one hundred twelve billion, two hundred twenty-one million, two hundred twenty-one thousand, two hundred one".