220112122121101 has 4 divisors (see below), whose sum is σ = 251556710995552. Its totient is φ = 188667533246652.

The previous prime is 220112122121077. The next prime is 220112122121119. The reversal of 220112122121101 is 101121221211022.

It is a happy number.

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 220112122121101 - 2¹⁹ = 220112121596813 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220112122121701) 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, 15722294437215 + ... + 15722294437228.

It is an arithmetic number, because the mean of its divisors is an integer number (62889177748888).

Almost surely, 2^{220112122121101} is an apocalyptic number.

It is an amenable number.

220112122121101 is a deficient number, since it is larger than the sum of its proper divisors (31444588874451).

220112122121101 is an equidigital number, since it uses as much as digits as its factorization.

220112122121101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31444588874450.

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 220112122121101 its reverse (101121221211022), we get a palindrome (321233343332123).

The spelling of 220112122121101 in words is "two hundred twenty trillion, one hundred twelve billion, one hundred twenty-two million, one hundred twenty-one thousand, one hundred one".