201213132 has 12 divisors (see below), whose sum is σ = 469497336. Its totient is φ = 67071040.

The previous prime is 201213121. The next prime is 201213137. The reversal of 201213132 is 231312102.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (201213137) 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, 8383869 + ... + 8383892.

It is an arithmetic number, because the mean of its divisors is an integer number (39124778).

Almost surely, 2^201213132 is an apocalyptic number.

It is an amenable number.

201213132 is an abundant number, since it is smaller than the sum of its proper divisors (268284204).

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

201213132 is a wasteful number, since it uses less digits than its factorization.

201213132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16767768 (or 16767766 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 201213132 is about 14184.9614733351. The cubic root of 201213132 is about 585.9835714700.

Adding to 201213132 its reverse (231312102), we get a palindrome (432525234).

The spelling of 201213132 in words is "two hundred one million, two hundred thirteen thousand, one hundred thirty-two".