1212236072 has 16 divisors (see below), whose sum is σ = 2274402240. Its totient is φ = 605728816.

The previous prime is 1212236071. The next prime is 1212236083. The reversal of 1212236072 is 2706322121.

It is not an unprimeable number, because it can be changed into a prime (1212236071) 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, 35198 + ... + 60525.

It is an arithmetic number, because the mean of its divisors is an integer number (142150140).

Almost surely, 2^1212236072 is an apocalyptic number.

It is an amenable number.

1212236072 is a deficient number, since it is larger than the sum of its proper divisors (1062166168).

1212236072 is a wasteful number, since it uses less digits than its factorization.

1212236072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97312 (or 97308 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 1212236072 is about 34817.1807014870. The cubic root of 1212236072 is about 1066.2582414644.

Adding to 1212236072 its reverse (2706322121), we get a palindrome (3918558193).

The spelling of 1212236072 in words is "one billion, two hundred twelve million, two hundred thirty-six thousand, seventy-two".