20112321221301 has 4 divisors (see below), whose sum is σ = 26816428295072. Its totient is φ = 13408214147532.

The previous prime is 20112321221297. The next prime is 20112321221323. The reversal of 20112321221301 is 10312212321102.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 20112321221301 - 2² = 20112321221297 is a prime.

It is a super-2 number, since 2×20112321221301² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20112321226301) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3352053536881 + ... + 3352053536886.

It is an arithmetic number, because the mean of its divisors is an integer number (6704107073768).

Almost surely, 2^{20112321221301} is an apocalyptic number.

It is an amenable number.

20112321221301 is a deficient number, since it is larger than the sum of its proper divisors (6704107073771).

20112321221301 is an equidigital number, since it uses as much as digits as its factorization.

20112321221301 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6704107073770.

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 20112321221301 its reverse (10312212321102), we get a palindrome (30424533542403).

The spelling of 20112321221301 in words is "twenty trillion, one hundred twelve billion, three hundred twenty-one million, two hundred twenty-one thousand, three hundred one".