21100223210322 has 16 divisors (see below), whose sum is σ = 42264289766592. Its totient is φ = 7022767179120.

The previous prime is 21100223210267. The next prime is 21100223210323. The reversal of 21100223210322 is 22301232200112.

It is a super-2 number, since 2×21100223210322² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (21100223210323) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2660135118 + ... + 2660143049.

It is an arithmetic number, because the mean of its divisors is an integer number (2641518110412).

Almost surely, 2^{21100223210322} is an apocalyptic number.

21100223210322 is an abundant number, since it is smaller than the sum of its proper divisors (21164066556270).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21100223210322 is a wasteful number, since it uses less digits than its factorization.

21100223210322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5320278833.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 21100223210322 its reverse (22301232200112), we get a palindrome (43401455410434).

The spelling of 21100223210322 in words is "twenty-one trillion, one hundred billion, two hundred twenty-three million, two hundred ten thousand, three hundred twenty-two".