22113212130 has 96 divisors (see below), whose sum is σ = 60621350400. Its totient is φ = 5577175296.

The previous prime is 22113212129. The next prime is 22113212137. The reversal of 22113212130 is 3121231122.

22113212130 is a `hidden beast` number, since 2 + 211 + 321 + 2 + 130 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (22113212137) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1044591 + ... + 1065549.

It is an arithmetic number, because the mean of its divisors is an integer number (631472400).

Almost surely, 2^22113212130 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22113212130, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30310675200).

22113212130 is an abundant number, since it is smaller than the sum of its proper divisors (38508138270).

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

22113212130 is a wasteful number, since it uses less digits than its factorization.

22113212130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21608 (or 21605 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 22113212130 its reverse (3121231122), we get a palindrome (25234443252).

The spelling of 22113212130 in words is "twenty-two billion, one hundred thirteen million, two hundred twelve thousand, one hundred thirty".