2122011013 has 4 divisors (see below), whose sum is σ = 2179362700. Its totient is φ = 2064659328.

The previous prime is 2122010993. The next prime is 2122011049. The reversal of 2122011013 is 3101102212.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1860800769 + 261210244 = 43137^2 + 16162^2 .

It is a cyclic number.

It is not a de Polignac number, because 2122011013 - 2²⁵ = 2088456581 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2122010984 and 2122011002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2122011083) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28675788 + ... + 28675861.

It is an arithmetic number, because the mean of its divisors is an integer number (544840675).

Almost surely, 2^2122011013 is an apocalyptic number.

It is an amenable number.

2122011013 is a deficient number, since it is larger than the sum of its proper divisors (57351687).

2122011013 is an equidigital number, since it uses as much as digits as its factorization.

2122011013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57351686.

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 2122011013 is about 46065.2907621346. The cubic root of 2122011013 is about 1285.0377260344.

Adding to 2122011013 its reverse (3101102212), we get a palindrome (5223113225).

The spelling of 2122011013 in words is "two billion, one hundred twenty-two million, eleven thousand, thirteen".