22113233121 has 8 divisors (see below), whose sum is σ = 33696355264. Its totient is φ = 12636133200.

The previous prime is 22113233119. The next prime is 22113233143. The reversal of 22113233121 is 12133231122.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 22113233121 - 2¹ = 22113233119 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 1053011101 = 22113233121 / (2 + 2 + 1 + 1 + 3 + 2 + 3 + 3 + 1 + 2 + 1).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22113233101) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 526505530 + ... + 526505571.

It is an arithmetic number, because the mean of its divisors is an integer number (4212044408).

Almost surely, 2^22113233121 is an apocalyptic number.

22113233121 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

22113233121 is a deficient number, since it is larger than the sum of its proper divisors (11583122143).

22113233121 is a wasteful number, since it uses less digits than its factorization.

22113233121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1053011111.

The product of its digits is 432, while the sum is 21.

Adding to 22113233121 its reverse (12133231122), we get a palindrome (34246464243).

The spelling of 22113233121 in words is "twenty-two billion, one hundred thirteen million, two hundred thirty-three thousand, one hundred twenty-one".