20030221034221 has 8 divisors (see below), whose sum is σ = 20301360394880. Its totient is φ = 19759521480192.

The previous prime is 20030221034203. The next prime is 20030221034267. The reversal of 20030221034221 is 12243012203002.

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 20030221034221 - 2¹⁷ = 20030220903149 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20030221034192 and 20030221034201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20030221031221) 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, 109859955 + ... + 110042128.

It is an arithmetic number, because the mean of its divisors is an integer number (2537670049360).

Almost surely, 2^{20030221034221} is an apocalyptic number.

It is an amenable number.

20030221034221 is a deficient number, since it is larger than the sum of its proper divisors (271139360659).

20030221034221 is a wasteful number, since it uses less digits than its factorization.

20030221034221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 219903315.

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 20030221034221 its reverse (12243012203002), we get a palindrome (32273233237223).

The spelling of 20030221034221 in words is "twenty trillion, thirty billion, two hundred twenty-one million, thirty-four thousand, two hundred twenty-one".