220121122002203 has 4 divisors (see below), whose sum is σ = 220149824724960. Its totient is φ = 220092419279448.

The previous prime is 220121122002191. The next prime is 220121122002239. The reversal of 220121122002203 is 302200221121022.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 220121122002203 - 2³⁸ = 219846244095259 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (220121122002263) 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, 14351349875 + ... + 14351365212.

It is an arithmetic number, because the mean of its divisors is an integer number (55037456181240).

Almost surely, 2^{220121122002203} is an apocalyptic number.

220121122002203 is a deficient number, since it is larger than the sum of its proper divisors (28702722757).

220121122002203 is an equidigital number, since it uses as much as digits as its factorization.

220121122002203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28702722756.

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 220121122002203 its reverse (302200221121022), we get a palindrome (522321343123225).

The spelling of 220121122002203 in words is "two hundred twenty trillion, one hundred twenty-one billion, one hundred twenty-two million, two thousand, two hundred three".