22201121211111 has 12 divisors (see below), whose sum is σ = 32934996631992. Its totient is φ = 14400727271856.

The previous prime is 22201121211109. The next prime is 22201121211131. The reversal of 22201121211111 is 11111212110222.

It is a happy number.

22201121211111 is a `hidden beast` number, since 2 + 220 + 1 + 121 + 211 + 111 = 666.

It is not a de Polignac number, because 22201121211111 - 2¹ = 22201121211109 is a prime.

It is a super-3 number, since 3×22201121211111³ (a number of 41 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22201121211131) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 33335016501 + ... + 33335017166.

It is an arithmetic number, because the mean of its divisors is an integer number (2744583052666).

Almost surely, 2^{22201121211111} is an apocalyptic number.

22201121211111 is a deficient number, since it is larger than the sum of its proper divisors (10733875420881).

22201121211111 is a wasteful number, since it uses less digits than its factorization.

22201121211111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66670033710 (or 66670033707 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 18.

Adding to 22201121211111 its reverse (11111212110222), we get a palindrome (33312333321333).

The spelling of 22201121211111 in words is "twenty-two trillion, two hundred one billion, one hundred twenty-one million, two hundred eleven thousand, one hundred eleven".