22221541254430 has 32 divisors (see below), whose sum is σ = 45713053391040. Its totient is φ = 7618786056960.

The previous prime is 22221541254421. The next prime is 22221541254433. The reversal of 22221541254430 is 3445214512222.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 22221541254430.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22221541254433) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29531106 + ... + 30274234.

It is an arithmetic number, because the mean of its divisors is an integer number (1428532918470).

Almost surely, 2^{22221541254430} is an apocalyptic number.

22221541254430 is an abundant number, since it is smaller than the sum of its proper divisors (23491512136610).

22221541254430 is a wasteful number, since it uses less digits than its factorization.

22221541254430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1170324.

The product of its (nonzero) digits is 153600, while the sum is 37.

Adding to 22221541254430 its reverse (3445214512222), we get a palindrome (25666755766652).

The spelling of 22221541254430 in words is "twenty-two trillion, two hundred twenty-one billion, five hundred forty-one million, two hundred fifty-four thousand, four hundred thirty".