111020221222101 has 16 divisors (see below), whose sum is σ = 164475218646720. Its totient is φ = 74013113238480.

The previous prime is 111020221222061. The next prime is 111020221222111. The reversal of 111020221222101 is 101222122020111.

It is not a de Polignac number, because 111020221222101 - 2²³ = 111020212833493 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111020221222111) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4617475 + ... + 15600048.

It is an arithmetic number, because the mean of its divisors is an integer number (10279701165420).

Almost surely, 2^{111020221222101} is an apocalyptic number.

It is an amenable number.

111020221222101 is a deficient number, since it is larger than the sum of its proper divisors (53454997424619).

111020221222101 is a wasteful number, since it uses less digits than its factorization.

111020221222101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20420913 (or 20420907 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 111020221222101 its reverse (101222122020111), we get a palindrome (212242343242212).

The spelling of 111020221222101 in words is "one hundred eleven trillion, twenty billion, two hundred twenty-one million, two hundred twenty-two thousand, one hundred one".