22000032021 has 8 divisors (see below), whose sum is σ = 32000046624. Its totient is φ = 13333352720.

The previous prime is 22000032011. The next prime is 22000032031. The reversal of 22000032021 is 12023000022.

It is an interprime number because it is at equal distance from previous prime (22000032011) and next prime (22000032031).

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

It is a cyclic number.

It is not a de Polignac number, because 22000032021 - 2²¹ = 21997934869 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22000031988 and 22000032006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22000032001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 333333786 + ... + 333333851.

It is an arithmetic number, because the mean of its divisors is an integer number (4000005828).

Almost surely, 2^22000032021 is an apocalyptic number.

It is an amenable number.

22000032021 is a deficient number, since it is larger than the sum of its proper divisors (10000014603).

22000032021 is a wasteful number, since it uses less digits than its factorization.

22000032021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 666667651.

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

Adding to 22000032021 its reverse (12023000022), we get a palindrome (34023032043).

The spelling of 22000032021 in words is "twenty-two billion, thirty-two thousand, twenty-one".