22421123422 has 4 divisors (see below), whose sum is σ = 33631685136. Its totient is φ = 11210561710.

The previous prime is 22421123407. The next prime is 22421123437. The reversal of 22421123422 is 22432112422.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (22421123407) and next prime (22421123437).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5605280854 + ... + 5605280857.

It is an arithmetic number, because the mean of its divisors is an integer number (8407921284).

Almost surely, 2^22421123422 is an apocalyptic number.

22421123422 is a deficient number, since it is larger than the sum of its proper divisors (11210561714).

22421123422 is a wasteful number, since it uses less digits than its factorization.

22421123422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11210561713.

The product of its digits is 3072, while the sum is 25.

Adding to 22421123422 its reverse (22432112422), we get a palindrome (44853235844).

The spelling of 22421123422 in words is "twenty-two billion, four hundred twenty-one million, one hundred twenty-three thousand, four hundred twenty-two".