202201000021 has 8 divisors (see below), whose sum is σ = 210996982080. Its totient is φ = 193405404192.

The previous prime is 202200999947. The next prime is 202201000037. The reversal of 202201000021 is 120000102202.

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 202201000021 - 2⁹ = 202200999509 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 202200999971 and 202201000007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202201060021) 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, 1631386 + ... + 1750948.

It is an arithmetic number, because the mean of its divisors is an integer number (26374622760).

Almost surely, 2^202201000021 is an apocalyptic number.

It is an amenable number.

202201000021 is a deficient number, since it is larger than the sum of its proper divisors (8795982059).

202201000021 is a wasteful number, since it uses less digits than its factorization.

202201000021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193115.

The product of its (nonzero) digits is 16, while the sum is 10.

Adding to 202201000021 its reverse (120000102202), we get a palindrome (322201102223).

The spelling of 202201000021 in words is "two hundred two billion, two hundred one million, twenty-one", and thus it is an aban number.