110720221501 has 4 divisors (see below), whose sum is σ = 116547601600. Its totient is φ = 104892841404.

The previous prime is 110720221483. The next prime is 110720221523. The reversal of 110720221501 is 105122027011.

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 a de Polignac number, because none of the positive numbers 2^k-110720221501 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 (110720221531) 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, 2913690021 + ... + 2913690058.

It is an arithmetic number, because the mean of its divisors is an integer number (29136900400).

Almost surely, 2^110720221501 is an apocalyptic number.

It is an amenable number.

110720221501 is a deficient number, since it is larger than the sum of its proper divisors (5827380099).

110720221501 is an equidigital number, since it uses as much as digits as its factorization.

110720221501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5827380098.

The product of its (nonzero) digits is 280, while the sum is 22.

Adding to 110720221501 its reverse (105122027011), we get a palindrome (215842248512).

The spelling of 110720221501 in words is "one hundred ten billion, seven hundred twenty million, two hundred twenty-one thousand, five hundred one".