20220221001 has 8 divisors (see below), whose sum is σ = 26961896160. Its totient is φ = 13479346592.

The previous prime is 20220220997. The next prime is 20220221003. The reversal of 20220221001 is 10012202202.

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 20220221001 - 2² = 20220220997 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20220221003) 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, 138555 + ... + 244208.

It is an arithmetic number, because the mean of its divisors is an integer number (3370237020).

Almost surely, 2^20220221001 is an apocalyptic number.

It is an amenable number.

20220221001 is a deficient number, since it is larger than the sum of its proper divisors (6741675159).

20220221001 is a wasteful number, since it uses less digits than its factorization.

20220221001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 400375.

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 20220221001 its reverse (10012202202), we get a palindrome (30232423203).

The spelling of 20220221001 in words is "twenty billion, two hundred twenty million, two hundred twenty-one thousand, one".