21010000211122 has 32 divisors (see below), whose sum is σ = 34360613134848. Its totient is φ = 9577033119936.

The previous prime is 21010000211117. The next prime is 21010000211147. The reversal of 21010000211122 is 22111200001012.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9517738 + ... + 11515525.

It is an arithmetic number, because the mean of its divisors is an integer number (1073769160464).

Almost surely, 2^{21010000211122} is an apocalyptic number.

21010000211122 is a deficient number, since it is larger than the sum of its proper divisors (13350612923726).

21010000211122 is a wasteful number, since it uses less digits than its factorization.

21010000211122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21033754.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 21010000211122 its reverse (22111200001012), we get a palindrome (43121200212134).

The spelling of 21010000211122 in words is "twenty-one trillion, ten billion, two hundred eleven thousand, one hundred twenty-two".