21100223103322 has 16 divisors (see below), whose sum is σ = 34527773012544. Its totient is φ = 9590972944000.

The previous prime is 21100223103317. The next prime is 21100223103341. The reversal of 21100223103322 is 22330132200112.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 21100223103293 and 21100223103302.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4322922 + ... + 7803082.

It is an arithmetic number, because the mean of its divisors is an integer number (2157985813284).

Almost surely, 2^{21100223103322} is an apocalyptic number.

21100223103322 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

21100223103322 is a deficient number, since it is larger than the sum of its proper divisors (13427549909222).

21100223103322 is a wasteful number, since it uses less digits than its factorization.

21100223103322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3755765.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 21100223103322 its reverse (22330132200112), we get a palindrome (43430355303434).

The spelling of 21100223103322 in words is "twenty-one trillion, one hundred billion, two hundred twenty-three million, one hundred three thousand, three hundred twenty-two".