220120210110001 has 4 divisors (see below), whose sum is σ = 220120258240000. Its totient is φ = 220120161980004.

The previous prime is 220120210109983. The next prime is 220120210110131. The reversal of 220120210110001 is 100011012021022.

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 a cyclic number.

It is not a de Polignac number, because 220120210110001 - 2⁴⁷ = 79382721754673 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (220124210110001) 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, 16388601 + ... + 26623798.

It is an arithmetic number, because the mean of its divisors is an integer number (55030064560000).

Almost surely, 2^{220120210110001} is an apocalyptic number.

It is an amenable number.

220120210110001 is a deficient number, since it is larger than the sum of its proper divisors (48129999).

220120210110001 is an equidigital number, since it uses as much as digits as its factorization.

220120210110001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48129998.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 220120210110001 its reverse (100011012021022), we get a palindrome (320131222131023).

The spelling of 220120210110001 in words is "two hundred twenty trillion, one hundred twenty billion, two hundred ten million, one hundred ten thousand, one".