22121110430 has 128 divisors (see below), whose sum is σ = 46954598400. Its totient is φ = 7441403904.

The previous prime is 22121110423. The next prime is 22121110457. The reversal of 22121110430 is 3401112122.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a junction number, because it is equal to n+sod(n) for n = 22121110399 and 22121110408.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 5421131 + ... + 5425209.

It is an arithmetic number, because the mean of its divisors is an integer number (366832800).

Almost surely, 2^22121110430 is an apocalyptic number.

22121110430 is an abundant number, since it is smaller than the sum of its proper divisors (24833487970).

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

22121110430 is a wasteful number, since it uses less digits than its factorization.

22121110430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4218.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 22121110430 its reverse (3401112122), we get a palindrome (25522222552).

The spelling of 22121110430 in words is "twenty-two billion, one hundred twenty-one million, one hundred ten thousand, four hundred thirty".