21011122010122 has 8 divisors (see below), whose sum is σ = 31524409598400. Its totient is φ = 10502985477324.

The previous prime is 21011122010113. The next prime is 21011122010167. The reversal of 21011122010122 is 22101022111012.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 21011122010096 and 21011122010105.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1287753672 + ... + 1287769987.

It is an arithmetic number, because the mean of its divisors is an integer number (3940551199800).

Almost surely, 2^{21011122010122} is an apocalyptic number.

21011122010122 is a deficient number, since it is larger than the sum of its proper divisors (10513287588278).

21011122010122 is a wasteful number, since it uses less digits than its factorization.

21011122010122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2575527740.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 21011122010122 its reverse (22101022111012), we get a palindrome (43112144121134).

The spelling of 21011122010122 in words is "twenty-one trillion, eleven billion, one hundred twenty-two million, ten thousand, one hundred twenty-two".