22421212422 has 32 divisors (see below), whose sum is σ = 51746053632. Its totient is φ = 6343864704.

The previous prime is 22421212421. The next prime is 22421212441.

22421212422 is nontrivially palindromic in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 22421212392 and 22421212401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22421212421) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2587123 + ... + 2595774.

It is an arithmetic number, because the mean of its divisors is an integer number (1617064176).

Almost surely, 2^22421212422 is an apocalyptic number.

22421212422 is an abundant number, since it is smaller than the sum of its proper divisors (29324841210).

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

22421212422 is a wasteful number, since it uses less digits than its factorization.

22421212422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5183012.

The product of its digits is 2048, while the sum is 24.

The spelling of 22421212422 in words is "twenty-two billion, four hundred twenty-one million, two hundred twelve thousand, four hundred twenty-two".