21010122011013 has 32 divisors (see below), whose sum is σ = 29925312921600. Its totient is φ = 13082688561600.

The previous prime is 21010122010993. The next prime is 21010122011057. The reversal of 21010122011013 is 31011022101012.

It is not a de Polignac number, because 21010122011013 - 2⁵ = 21010122010981 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 21010122010983 and 21010122011001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21010122011063) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5900598 + ... + 8765688.

It is an arithmetic number, because the mean of its divisors is an integer number (935166028800).

Almost surely, 2^{21010122011013} is an apocalyptic number.

It is an amenable number.

21010122011013 is a deficient number, since it is larger than the sum of its proper divisors (8915190910587).

21010122011013 is a wasteful number, since it uses less digits than its factorization.

21010122011013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2867873.

The product of its (nonzero) digits is 24, while the sum is 15.

Adding to 21010122011013 its reverse (31011022101012), we get a palindrome (52021144112025).

The spelling of 21010122011013 in words is "twenty-one trillion, ten billion, one hundred twenty-two million, eleven thousand, thirteen".