21022030001 has 8 divisors (see below), whose sum is σ = 24674506560. Its totient is φ = 17531885808.

The previous prime is 21022029997. The next prime is 21022030013. The reversal of 21022030001 is 10003022012.

It is a happy number.

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 21022030001 - 2² = 21022029997 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21022030091) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40582811 + ... + 40583328.

It is an arithmetic number, because the mean of its divisors is an integer number (3084313320).

Almost surely, 2^21022030001 is an apocalyptic number.

It is an amenable number.

21022030001 is a deficient number, since it is larger than the sum of its proper divisors (3652476559).

21022030001 is an equidigital number, since it uses as much as digits as its factorization.

21022030001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81166183.

The product of its (nonzero) digits is 24, while the sum is 11.

Adding to 21022030001 its reverse (10003022012), we get a palindrome (31025052013).

The spelling of 21022030001 in words is "twenty-one billion, twenty-two million, thirty thousand, one".