22121410 has 8 divisors (see below), whose sum is σ = 39818556. Its totient is φ = 8848560.

The previous prime is 22121387. The next prime is 22121431. The reversal of 22121410 is 1412122.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 21986721 + 134689 = 4689^2 + 367^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1106061 + ... + 1106080.

Almost surely, 2^22121410 is an apocalyptic number.

22121410 is a deficient number, since it is larger than the sum of its proper divisors (17697146).

22121410 is a wasteful number, since it uses less digits than its factorization.

22121410 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2212148.

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 22121410 is about 4703.3403023809. The cubic root of 22121410 is about 280.7184356436.

Adding to 22121410 its reverse (1412122), we get a palindrome (23533532).

The spelling of 22121410 in words is "twenty-two million, one hundred twenty-one thousand, four hundred ten".