16521100022 has 8 divisors (see below), whose sum is σ = 28321885776. Its totient is φ = 7080471432.

The previous prime is 16521100009. The next prime is 16521100033. The reversal of 16521100022 is 22000112561.

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

It is a junction number, because it is equal to n+sod(n) for n = 16521099967 and 16521100003.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 590039273 + ... + 590039300.

It is an arithmetic number, because the mean of its divisors is an integer number (3540235722).

Almost surely, 2^16521100022 is an apocalyptic number.

16521100022 is a deficient number, since it is larger than the sum of its proper divisors (11800785754).

16521100022 is a wasteful number, since it uses less digits than its factorization.

16521100022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1180078582.

The product of its (nonzero) digits is 240, while the sum is 20.

Adding to 16521100022 its reverse (22000112561), we get a palindrome (38521212583).

The spelling of 16521100022 in words is "sixteen billion, five hundred twenty-one million, one hundred thousand, twenty-two".