21132022 has 8 divisors (see below), whose sum is σ = 31732200. Its totient is φ = 10554624.

The previous prime is 21132011. The next prime is 21132061. The reversal of 21132022 is 22023112.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 21131993 and 21132011.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3147 + ... + 7222.

It is an arithmetic number, because the mean of its divisors is an integer number (3966525).

Almost surely, 2^21132022 is an apocalyptic number.

21132022 is a deficient number, since it is larger than the sum of its proper divisors (10600178).

21132022 is a wasteful number, since it uses less digits than its factorization.

21132022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11390.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 21132022 is about 4596.9579071382. The cubic root of 21132022 is about 276.4693669213.

Adding to 21132022 its reverse (22023112), we get a palindrome (43155134).

The spelling of 21132022 in words is "twenty-one million, one hundred thirty-two thousand, twenty-two".