22214010421 has 4 divisors (see below), whose sum is σ = 22214321644. Its totient is φ = 22213699200.

The previous prime is 22214010389. The next prime is 22214010431. The reversal of 22214010421 is 12401041222.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 6610503025 + 15603507396 = 81305^2 + 124914^2 .

It is a cyclic number.

It is not a de Polignac number, because 22214010421 - 2⁵ = 22214010389 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22214010431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10711 + ... + 211051.

It is an arithmetic number, because the mean of its divisors is an integer number (5553580411).

Almost surely, 2^22214010421 is an apocalyptic number.

It is an amenable number.

22214010421 is a deficient number, since it is larger than the sum of its proper divisors (311223).

22214010421 is a wasteful number, since it uses less digits than its factorization.

22214010421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 311222.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 22214010421 its reverse (12401041222), we get a palindrome (34615051643).

The spelling of 22214010421 in words is "twenty-two billion, two hundred fourteen million, ten thousand, four hundred twenty-one".