220001223101 has 4 divisors (see below), whose sum is σ = 240001334304. Its totient is φ = 200001111900.

The previous prime is 220001223077. The next prime is 220001223107. The reversal of 220001223101 is 101322100022.

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 220001223101 - 2¹⁴ = 220001206717 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 (220001223107) 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, 10000055585 + ... + 10000055606.

It is an arithmetic number, because the mean of its divisors is an integer number (60000333576).

Almost surely, 2^220001223101 is an apocalyptic number.

It is an amenable number.

220001223101 is a deficient number, since it is larger than the sum of its proper divisors (20000111203).

220001223101 is a wasteful number, since it uses less digits than its factorization.

220001223101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20000111202.

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 220001223101 its reverse (101322100022), we get a palindrome (321323323123).

The spelling of 220001223101 in words is "two hundred twenty billion, one million, two hundred twenty-three thousand, one hundred one".