1212012 has 36 divisors (see below), whose sum is σ = 3099096. Its totient is φ = 399360.

The previous prime is 1212011. The next prime is 1212017. The reversal of 1212012 is 2102121.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a plaindrome in base 13.

It is a junction number, because it is equal to n+sod(n) for n = 1211985 and 1212003.

It is not an unprimeable number, because it can be changed into a prime (1212011) 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, 4588 + ... + 4844.

It is an arithmetic number, because the mean of its divisors is an integer number (86086).

2^1212012 is an apocalyptic number.

1212012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1212012 is an abundant number, since it is smaller than the sum of its proper divisors (1887084).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1212012 is a wasteful number, since it uses less digits than its factorization.

1212012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 398 (or 393 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

The square root of 1212012 is about 1100.9141655915. The cubic root of 1212012 is about 106.6192541022.

Adding to 1212012 its reverse (2102121), we get a palindrome (3314133).

The spelling of 1212012 in words is "one million, two hundred twelve thousand, twelve".