21100211213322 has 16 divisors (see below), whose sum is σ = 42206539399200. Its totient is φ = 7032384242352.

The previous prime is 21100211213303. The next prime is 21100211213357. The reversal of 21100211213322 is 22331211200112.

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, 254829013 + ... + 254911800.

It is an arithmetic number, because the mean of its divisors is an integer number (2637908712450).

Almost surely, 2^{21100211213322} is an apocalyptic number.

21100211213322 is an abundant number, since it is smaller than the sum of its proper divisors (21106328185878).

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

21100211213322 is a wasteful number, since it uses less digits than its factorization.

21100211213322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 509747717.

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 21100211213322 its reverse (22331211200112), we get a palindrome (43431422413434).

The spelling of 21100211213322 in words is "twenty-one trillion, one hundred billion, two hundred eleven million, two hundred thirteen thousand, three hundred twenty-two".