1212113 has 12 divisors (see below), whose sum is σ = 1460340. Its totient is φ = 1001952.

The previous prime is 1212103. The next prime is 1212119. The reversal of 1212113 is 3112121.

It can be written as a sum of positive squares in 2 ways, for example, as 305809 + 906304 = 553^2 + 952^2 .

It is not a de Polignac number, because 1212113 - 2⁸ = 1211857 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1212094 and 1212103.

It is not an unprimeable number, because it can be changed into a prime (1212119) 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, 995 + ... + 1847.

It is an arithmetic number, because the mean of its divisors is an integer number (121695).

2^1212113 is an apocalyptic number.

It is an amenable number.

1212113 is a deficient number, since it is larger than the sum of its proper divisors (248227).

1212113 is an equidigital number, since it uses as much as digits as its factorization.

1212113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 896 (or 889 counting only the distinct ones).

The product of its digits is 12, while the sum is 11.

The square root of 1212113 is about 1100.9600356053. The cubic root of 1212113 is about 106.6222156366.

Adding to 1212113 its reverse (3112121), we get a palindrome (4324234).

The spelling of 1212113 in words is "one million, two hundred twelve thousand, one hundred thirteen".