22100110222021 has 16 divisors (see below), whose sum is σ = 23817753487360. Its totient is φ = 20384988586560.

The previous prime is 22100110222007. The next prime is 22100110222031. The reversal of 22100110222021 is 12022201100122.

It is a happy number.

It is not a de Polignac number, because 22100110222021 - 2¹⁵ = 22100110189253 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22100110221986 and 22100110222004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22100110222031) 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, 262339135 + ... + 262423363.

It is an arithmetic number, because the mean of its divisors is an integer number (1488609592960).

Almost surely, 2^{22100110222021} is an apocalyptic number.

It is an amenable number.

22100110222021 is a deficient number, since it is larger than the sum of its proper divisors (1717643265339).

22100110222021 is a wasteful number, since it uses less digits than its factorization.

22100110222021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98956.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 22100110222021 its reverse (12022201100122), we get a palindrome (34122311322143).

The spelling of 22100110222021 in words is "twenty-two trillion, one hundred billion, one hundred ten million, two hundred twenty-two thousand, twenty-one".