22121234 has 8 divisors (see below), whose sum is σ = 33218748. Its totient is φ = 11048320.

The previous prime is 22121213. The next prime is 22121293. The reversal of 22121234 is 43212122.

It can be written as a sum of positive squares in 2 ways, for example, as 22118209 + 3025 = 4703^2 + 55^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a plaindrome in base 9.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3707 + ... + 7614.

Almost surely, 2^22121234 is an apocalyptic number.

22121234 is a deficient number, since it is larger than the sum of its proper divisors (11097514).

22121234 is a wasteful number, since it uses less digits than its factorization.

22121234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12300.

The product of its digits is 192, while the sum is 17.

The square root of 22121234 is about 4703.3215922367. The cubic root of 22121234 is about 280.7176911676.

Adding to 22121234 its reverse (43212122), we get a palindrome (65333356).

The spelling of 22121234 in words is "twenty-two million, one hundred twenty-one thousand, two hundred thirty-four".