21103132202222 has 16 divisors (see below), whose sum is σ = 38080840064640. Its totient is φ = 8568189014328.

The previous prime is 21103132202189. The next prime is 21103132202231. The reversal of 21103132202222 is 22220223130112.

It is a happy number.

It is a congruent number.

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, 39667541468 + ... + 39667541999.

It is an arithmetic number, because the mean of its divisors is an integer number (2380052504040).

Almost surely, 2^{21103132202222} is an apocalyptic number.

21103132202222 is a deficient number, since it is larger than the sum of its proper divisors (16977707862418).

21103132202222 is a wasteful number, since it uses less digits than its factorization.

21103132202222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79335083495.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 21103132202222 its reverse (22220223130112), we get a palindrome (43323355332334).

The spelling of 21103132202222 in words is "twenty-one trillion, one hundred three billion, one hundred thirty-two million, two hundred two thousand, two hundred twenty-two".