20212123003221 has 8 divisors (see below), whose sum is σ = 26979880089024. Its totient is φ = 13459557293120.

The previous prime is 20212123003187. The next prime is 20212123003229. The reversal of 20212123003221 is 12230032121202.

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 20212123003221 - 2³⁵ = 20177763264853 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20212123003229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3797840820 + ... + 3797846141.

It is an arithmetic number, because the mean of its divisors is an integer number (3372485011128).

Almost surely, 2^{20212123003221} is an apocalyptic number.

It is an amenable number.

20212123003221 is a deficient number, since it is larger than the sum of its proper divisors (6767757085803).

20212123003221 is an equidigital number, since it uses as much as digits as its factorization.

20212123003221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7595687851.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 20212123003221 its reverse (12230032121202), we get a palindrome (32442155124423).

The spelling of 20212123003221 in words is "twenty trillion, two hundred twelve billion, one hundred twenty-three million, three thousand, two hundred twenty-one".