1122535021 has 4 divisors (see below), whose sum is σ = 1126587772. Its totient is φ = 1118482272.

The previous prime is 1122535019. The next prime is 1122535027. The reversal of 1122535021 is 1205352211.

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 305375625 + 817159396 = 17475^2 + 28586^2 .

It is a cyclic number.

It is not a de Polignac number, because 1122535021 - 2¹ = 1122535019 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1122534983 and 1122535001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1122535027) 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, 2025960 + ... + 2026513.

It is an arithmetic number, because the mean of its divisors is an integer number (281646943).

Almost surely, 2^1122535021 is an apocalyptic number.

It is an amenable number.

1122535021 is a deficient number, since it is larger than the sum of its proper divisors (4052751).

1122535021 is an equidigital number, since it uses as much as digits as its factorization.

1122535021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4052750.

The product of its (nonzero) digits is 600, while the sum is 22.

The square root of 1122535021 is about 33504.2537747075. The cubic root of 1122535021 is about 1039.2817467335.

Adding to 1122535021 its reverse (1205352211), we get a palindrome (2327887232).

The spelling of 1122535021 in words is "one billion, one hundred twenty-two million, five hundred thirty-five thousand, twenty-one".