22444253201421 has 12 divisors (see below), whose sum is σ = 32462645267520. Its totient is φ = 14942911581000.

The previous prime is 22444253201417. The next prime is 22444253201533. The reversal of 22444253201421 is 12410235244422.

22444253201421 is a `hidden beast` number, since 2 + 2 + 4 + 4 + 4 + 25 + 3 + 201 + 421 = 666.

It is not a de Polignac number, because 22444253201421 - 2² = 22444253201417 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22444253211421) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1660316751 + ... + 1660330268.

It is an arithmetic number, because the mean of its divisors is an integer number (2705220438960).

Almost surely, 2^{22444253201421} is an apocalyptic number.

It is an amenable number.

22444253201421 is a deficient number, since it is larger than the sum of its proper divisors (10018392066099).

22444253201421 is a wasteful number, since it uses less digits than its factorization.

22444253201421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3320647776 (or 3320647773 counting only the distinct ones).

The product of its (nonzero) digits is 122880, while the sum is 36.

Adding to 22444253201421 its reverse (12410235244422), we get a palindrome (34854488445843).

The spelling of 22444253201421 in words is "twenty-two trillion, four hundred forty-four billion, two hundred fifty-three million, two hundred one thousand, four hundred twenty-one".