10020203221 has 8 divisors (see below), whose sum is σ = 11846545920. Its totient is φ = 8292581808.

The previous prime is 10020203209. The next prime is 10020203243. The reversal of 10020203221 is 12230202001.

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

It is not a de Polignac number, because 10020203221 - 2⁷ = 10020203093 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10020233221) 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, 24680101 + ... + 24680506.

It is an arithmetic number, because the mean of its divisors is an integer number (1480818240).

Almost surely, 2^10020203221 is an apocalyptic number.

It is an amenable number.

10020203221 is a deficient number, since it is larger than the sum of its proper divisors (1826342699).

10020203221 is an equidigital number, since it uses as much as digits as its factorization.

10020203221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49360643.

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

Adding to 10020203221 its reverse (12230202001), we get a palindrome (22250405222).

The spelling of 10020203221 in words is "ten billion, twenty million, two hundred three thousand, two hundred twenty-one".