2231121033 has 6 divisors (see below), whose sum is σ = 3222730394. Its totient is φ = 1487414016.

The previous prime is 2231121031. The next prime is 2231121041. The reversal of 2231121033 is 3301211322.

It can be written as a sum of positive squares in only one way, i.e., 1960452729 + 270668304 = 44277^2 + 16452^2 .

It is not a de Polignac number, because 2231121033 - 2¹ = 2231121031 is a prime.

It is a super-3 number, since 3×2231121033³ (a number of 29 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2231120997 and 2231121015.

It is not an unprimeable number, because it can be changed into a prime (2231121031) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 123951160 + ... + 123951177.

Almost surely, 2^2231121033 is an apocalyptic number.

It is an amenable number.

2231121033 is a deficient number, since it is larger than the sum of its proper divisors (991609361).

2231121033 is a wasteful number, since it uses less digits than its factorization.

2231121033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 247902343 (or 247902340 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 2231121033 is about 47234.7439180102. The cubic root of 2231121033 is about 1306.6954437630.

Adding to 2231121033 its reverse (3301211322), we get a palindrome (5532332355).

The spelling of 2231121033 in words is "two billion, two hundred thirty-one million, one hundred twenty-one thousand, thirty-three".