21031330011122 has 16 divisors (see below), whose sum is σ = 31686484576032. Its totient is φ = 10469169995040.

The previous prime is 21031330011113. The next prime is 21031330011137. The reversal of 21031330011122 is 22111003313012.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 21031330011094 and 21031330011103.

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, 30271097 + ... + 30958067.

It is an arithmetic number, because the mean of its divisors is an integer number (1980405286002).

Almost surely, 2^{21031330011122} is an apocalyptic number.

21031330011122 is a deficient number, since it is larger than the sum of its proper divisors (10655154564910).

21031330011122 is a wasteful number, since it uses less digits than its factorization.

21031330011122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 754633.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 21031330011122 its reverse (22111003313012), we get a palindrome (43142333324134).

The spelling of 21031330011122 in words is "twenty-one trillion, thirty-one billion, three hundred thirty million, eleven thousand, one hundred twenty-two".