1220110110221 has 8 divisors (see below), whose sum is σ = 1239074172000. Its totient is φ = 1201281024400.

The previous prime is 1220110110173. The next prime is 1220110110227.

1220110110221 is nontrivially palindromic in base 10.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1220110110221 - 2³⁸ = 945232203277 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1220110110196 and 1220110110205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220110110227) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33725771 + ... + 33761928.

It is an arithmetic number, because the mean of its divisors is an integer number (154884271500).

Almost surely, 2^{1220110110221} is an apocalyptic number.

It is an amenable number.

1220110110221 is a deficient number, since it is larger than the sum of its proper divisors (18964061779).

1220110110221 is a wasteful number, since it uses less digits than its factorization.

1220110110221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67487979.

The product of its (nonzero) digits is 16, while the sum is 14.

It can be divided in two parts, 1220110 and 110221, that added together give a palindrome (1330331).

The spelling of 1220110110221 in words is "one trillion, two hundred twenty billion, one hundred ten million, one hundred ten thousand, two hundred twenty-one".