1122122013 has 4 divisors (see below), whose sum is σ = 1496162688. Its totient is φ = 748081340.

The previous prime is 1122122011. The next prime is 1122122041. The reversal of 1122122013 is 3102212211.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1122122013 - 2¹ = 1122122011 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1122121983 and 1122122001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1122122011) 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, 187020333 + ... + 187020338.

It is an arithmetic number, because the mean of its divisors is an integer number (374040672).

Almost surely, 2^1122122013 is an apocalyptic number.

It is an amenable number.

1122122013 is a deficient number, since it is larger than the sum of its proper divisors (374040675).

1122122013 is an equidigital number, since it uses as much as digits as its factorization.

1122122013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 374040674.

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 1122122013 is about 33498.0896918018. The cubic root of 1122122013 is about 1039.1542720682.

Adding to 1122122013 its reverse (3102212211), we get a palindrome (4224334224).

The spelling of 1122122013 in words is "one billion, one hundred twenty-two million, one hundred twenty-two thousand, thirteen".