1212013272 has 32 divisors (see below), whose sum is σ = 3032409600. Its totient is φ = 403687584.

The previous prime is 1212013247. The next prime is 1212013273. The reversal of 1212013272 is 2723102121.

1212013272 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1212013273) 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, 12513 + ... + 50799.

It is an arithmetic number, because the mean of its divisors is an integer number (94762800).

Almost surely, 2^1212013272 is an apocalyptic number.

1212013272 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1212013272 is an abundant number, since it is smaller than the sum of its proper divisors (1820396328).

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

1212013272 is a wasteful number, since it uses less digits than its factorization.

1212013272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39615 (or 39611 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 21.

The square root of 1212013272 is about 34813.9809846562. The cubic root of 1212013272 is about 1066.1929140095.

Adding to 1212013272 its reverse (2723102121), we get a palindrome (3935115393).

The spelling of 1212013272 in words is "one billion, two hundred twelve million, thirteen thousand, two hundred seventy-two".