22131123330 has 16 divisors (see below), whose sum is σ = 53114696064. Its totient is φ = 5901632880.

The previous prime is 22131123317. The next prime is 22131123331. The reversal of 22131123330 is 3332113122.

It is a junction number, because it is equal to n+sod(n) for n = 22131123297 and 22131123306.

It is not an unprimeable number, because it can be changed into a prime (22131123331) 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, 368852026 + ... + 368852085.

It is an arithmetic number, because the mean of its divisors is an integer number (3319668504).

Almost surely, 2^22131123330 is an apocalyptic number.

22131123330 is an abundant number, since it is smaller than the sum of its proper divisors (30983572734).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22131123330 is a wasteful number, since it uses less digits than its factorization.

22131123330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 737704121.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 22131123330 its reverse (3332113122), we get a palindrome (25463236452).

The spelling of 22131123330 in words is "twenty-two billion, one hundred thirty-one million, one hundred twenty-three thousand, three hundred thirty".