21032022001 has 8 divisors (see below), whose sum is σ = 21142952424. Its totient is φ = 20921134080.

The previous prime is 21032021987. The next prime is 21032022019. The reversal of 21032022001 is 10022023012.

It can be written as a sum of positive squares in 4 ways, for example, as 18747086400 + 2284935601 = 136920^2 + 47801^2 .

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 21032022001 - 2⁹ = 21032021489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21032022101) 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, 1670791 + ... + 1683331.

It is an arithmetic number, because the mean of its divisors is an integer number (2642869053).

Almost surely, 2^21032022001 is an apocalyptic number.

It is an amenable number.

21032022001 is a deficient number, since it is larger than the sum of its proper divisors (110930423).

21032022001 is a wasteful number, since it uses less digits than its factorization.

21032022001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21251.

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

Adding to 21032022001 its reverse (10022023012), we get a palindrome (31054045013).

The spelling of 21032022001 in words is "twenty-one billion, thirty-two million, twenty-two thousand, one".