1212011232 has 48 divisors (see below), whose sum is σ = 3184085520. Its totient is φ = 403679232.

The previous prime is 1212011179. The next prime is 1212011233. The reversal of 1212011232 is 2321102121.

It is a tau number, because it is divible by the number of its divisors (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1212011233) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 135144 + ... + 143832.

It is an arithmetic number, because the mean of its divisors is an integer number (66335115).

Almost surely, 2^1212011232 is an apocalyptic number.

1212011232 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1212011232 is an abundant number, since it is smaller than the sum of its proper divisors (1972074288).

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

1212011232 is a wasteful number, since it uses less digits than its factorization.

1212011232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10155 (or 10147 counting only the distinct ones).

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

The square root of 1212011232 is about 34813.9516860698. The cubic root of 1212011232 is about 1066.1923158217.

Adding to 1212011232 its reverse (2321102121), we get a palindrome (3533113353).

The spelling of 1212011232 in words is "one billion, two hundred twelve million, eleven thousand, two hundred thirty-two".