22201050521 has 16 divisors (see below), whose sum is σ = 24318748608. Its totient is φ = 20143252800.

The previous prime is 22201050503. The next prime is 22201050559. The reversal of 22201050521 is 12505010222.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22201050521 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22201050493 and 22201050502.

It is not an unprimeable number, because it can be changed into a prime (22201059521) 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, 373886 + ... + 429176.

It is an arithmetic number, because the mean of its divisors is an integer number (1519921788).

Almost surely, 2^22201050521 is an apocalyptic number.

It is an amenable number.

22201050521 is a deficient number, since it is larger than the sum of its proper divisors (2117698087).

22201050521 is a wasteful number, since it uses less digits than its factorization.

22201050521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55832.

The product of its (nonzero) digits is 400, while the sum is 20.

Adding to 22201050521 its reverse (12505010222), we get a palindrome (34706060743).

The spelling of 22201050521 in words is "twenty-two billion, two hundred one million, fifty thousand, five hundred twenty-one".