1214211132 has 72 divisors (see below), whose sum is σ = 3148891200. Its totient is φ = 394343040.

The previous prime is 1214211107. The next prime is 1214211133. The reversal of 1214211132 is 2311124121.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1214211133) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 282157 + ... + 286427.

It is an arithmetic number, because the mean of its divisors is an integer number (43734600).

Almost surely, 2^1214211132 is an apocalyptic number.

1214211132 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1214211132, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1574445600).

1214211132 is an abundant number, since it is smaller than the sum of its proper divisors (1934680068).

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

1214211132 is a wasteful number, since it uses less digits than its factorization.

1214211132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4483 (or 4478 counting only the distinct ones).

The product of its digits is 96, while the sum is 18.

The square root of 1214211132 is about 34845.5324539603. The cubic root of 1214211132 is about 1066.8370014872.

Adding to 1214211132 its reverse (2311124121), we get a palindrome (3525335253).

The spelling of 1214211132 in words is "one billion, two hundred fourteen million, two hundred eleven thousand, one hundred thirty-two".