20030112221 has 8 divisors (see below), whose sum is σ = 22897977984. Its totient is φ = 17163851760.

The previous prime is 20030112197. The next prime is 20030112229. The reversal of 20030112221 is 12221103002.

It is a happy number.

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 20030112221 - 2³⁰ = 18956370397 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20030112196 and 20030112205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20030112229) 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, 374465 + ... + 424598.

It is an arithmetic number, because the mean of its divisors is an integer number (2862247248).

Almost surely, 2^20030112221 is an apocalyptic number.

It is an amenable number.

20030112221 is a deficient number, since it is larger than the sum of its proper divisors (2867865763).

20030112221 is an equidigital number, since it uses as much as digits as its factorization.

20030112221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 802651.

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 20030112221 its reverse (12221103002), we get a palindrome (32251215223).

The spelling of 20030112221 in words is "twenty billion, thirty million, one hundred twelve thousand, two hundred twenty-one".