201421132 has 48 divisors (see below), whose sum is σ = 395684352. Its totient is φ = 88930880.

The previous prime is 201421127. The next prime is 201421139. The reversal of 201421132 is 231124102.

It is a super-2 number, since 2×201421132² = 81140944832322848, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (201421139) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 357483 + ... + 358045.

It is an arithmetic number, because the mean of its divisors is an integer number (8243424).

Almost surely, 2^201421132 is an apocalyptic number.

201421132 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

201421132 is a deficient number, since it is larger than the sum of its proper divisors (194263220).

201421132 is a wasteful number, since it uses less digits than its factorization.

201421132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 798 (or 796 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 201421132 is about 14192.2912878788. The cubic root of 201421132 is about 586.1854181506.

Adding to 201421132 its reverse (231124102), we get a palindrome (432545234).

The spelling of 201421132 in words is "two hundred one million, four hundred twenty-one thousand, one hundred thirty-two".