21032022 has 32 divisors (see below), whose sum is σ = 46126080. Its totient is φ = 6340320.

The previous prime is 21032003. The next prime is 21032023. The reversal of 21032022 is 22023012.

It is a junction number, because it is equal to n+sod(n) for n = 21031989 and 21032007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21032023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14004 + ... + 15432.

It is an arithmetic number, because the mean of its divisors is an integer number (1441440).

Almost surely, 2^21032022 is an apocalyptic number.

21032022 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

21032022 is an abundant number, since it is smaller than the sum of its proper divisors (25094058).

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

21032022 is a wasteful number, since it uses less digits than its factorization.

21032022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1668.

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 21032022 is about 4586.0682506914. The cubic root of 21032022 is about 276.0325785950.

Adding to 21032022 its reverse (22023012), we get a palindrome (43055034).

The spelling of 21032022 in words is "twenty-one million, thirty-two thousand, twenty-two".