22201110021 has 16 divisors (see below), whose sum is σ = 30346297344. Its totient is φ = 14430727344.

The previous prime is 22201110013. The next prime is 22201110023. The reversal of 22201110021 is 12001110222.

It is not a de Polignac number, because 22201110021 - 2³ = 22201110013 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 22201109979 and 22201110006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22201110023) 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, 262261 + ... + 336426.

It is an arithmetic number, because the mean of its divisors is an integer number (1896643584).

Almost surely, 2^22201110021 is an apocalyptic number.

It is an amenable number.

22201110021 is a deficient number, since it is larger than the sum of its proper divisors (8145187323).

22201110021 is a wasteful number, since it uses less digits than its factorization.

22201110021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 599000.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 22201110021 its reverse (12001110222), we get a palindrome (34202220243).

The spelling of 22201110021 in words is "twenty-two billion, two hundred one million, one hundred ten thousand, twenty-one".