220231001101 has 4 divisors (see below), whose sum is σ = 221689484704. Its totient is φ = 218772517500.

The previous prime is 220231001087. The next prime is 220231001113. The reversal of 220231001101 is 101100132022.

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 220231001101 - 2⁵ = 220231001069 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 (220231001161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 729241575 + ... + 729241876.

It is an arithmetic number, because the mean of its divisors is an integer number (55422371176).

Almost surely, 2^220231001101 is an apocalyptic number.

It is an amenable number.

220231001101 is a deficient number, since it is larger than the sum of its proper divisors (1458483603).

220231001101 is a wasteful number, since it uses less digits than its factorization.

220231001101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1458483602.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 220231001101 its reverse (101100132022), we get a palindrome (321331133123).

The spelling of 220231001101 in words is "two hundred twenty billion, two hundred thirty-one million, one thousand, one hundred one".