22241402003521 has 8 divisors (see below), whose sum is σ = 23551441359624. Its totient is φ = 20931553935360.

The previous prime is 22241402003501. The next prime is 22241402003603. The reversal of 22241402003521 is 12530020414222.

It can be written as a sum of positive squares in 4 ways, for example, as 4967727745600 + 17273674257921 = 2228840^2 + 4156161^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 22241402003521 - 2¹⁹ = 22241401479233 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22241402003521.

It is not an unprimeable number, because it can be changed into a prime (22241402003501) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47582560 + ... + 48047713.

It is an arithmetic number, because the mean of its divisors is an integer number (2943930169953).

Almost surely, 2^{22241402003521} is an apocalyptic number.

It is an amenable number.

22241402003521 is a deficient number, since it is larger than the sum of its proper divisors (1310039356103).

22241402003521 is a wasteful number, since it uses less digits than its factorization.

22241402003521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95643971.

The product of its (nonzero) digits is 7680, while the sum is 28.

Adding to 22241402003521 its reverse (12530020414222), we get a palindrome (34771422417743).

The spelling of 22241402003521 in words is "twenty-two trillion, two hundred forty-one billion, four hundred two million, three thousand, five hundred twenty-one".