2203121011 has 12 divisors (see below), whose sum is σ = 2726433552. Its totient is φ = 1743127776.

The previous prime is 2203121009. The next prime is 2203121017. The reversal of 2203121011 is 1101213022.

2203121011 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2203121011 - 2¹ = 2203121009 is a prime.

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

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2203120982 and 2203121000.

It is not an unprimeable number, because it can be changed into a prime (2203121017) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 929976 + ... + 932341.

It is an arithmetic number, because the mean of its divisors is an integer number (227202796).

Almost surely, 2^2203121011 is an apocalyptic number.

2203121011 is a deficient number, since it is larger than the sum of its proper divisors (523312541).

2203121011 is a wasteful number, since it uses less digits than its factorization.

2203121011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1862350 (or 1862337 counting only the distinct ones).

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

The square root of 2203121011 is about 46937.4158960631. The cubic root of 2203121011 is about 1301.2061805220.

Adding to 2203121011 its reverse (1101213022), we get a palindrome (3304334033).

The spelling of 2203121011 in words is "two billion, two hundred three million, one hundred twenty-one thousand, eleven".