221120111221101 has 24 divisors (see below), whose sum is σ = 321730395901824. Its totient is φ = 146335885243200.

The previous prime is 221120111221019. The next prime is 221120111221109. The reversal of 221120111221101 is 101122111021122.

It is a happy number.

221120111221101 is a `hidden beast` number, since 2 + 211 + 20 + 111 + 221 + 101 = 666.

It is not a de Polignac number, because 221120111221101 - 2²³ = 221120102832493 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221120111221109) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 125446860 + ... + 127197306.

It is an arithmetic number, because the mean of its divisors is an integer number (13405433162576).

Almost surely, 2^{221120111221101} is an apocalyptic number.

It is an amenable number.

221120111221101 is a deficient number, since it is larger than the sum of its proper divisors (100610284680723).

221120111221101 is a wasteful number, since it uses less digits than its factorization.

221120111221101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1853041 (or 1853038 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 18.

Adding to 221120111221101 its reverse (101122111021122), we get a palindrome (322242222242223).

The spelling of 221120111221101 in words is "two hundred twenty-one trillion, one hundred twenty billion, one hundred eleven million, two hundred twenty-one thousand, one hundred one".