111120202012101 has 4 divisors (see below), whose sum is σ = 148160269349472. Its totient is φ = 74080134674732.

The previous prime is 111120202012033. The next prime is 111120202012123. The reversal of 111120202012101 is 101210202021111.

It is a happy number.

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 111120202012101 - 2⁹ = 111120202011589 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111120202012901) 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, 18520033668681 + ... + 18520033668686.

It is an arithmetic number, because the mean of its divisors is an integer number (37040067337368).

Almost surely, 2^{111120202012101} is an apocalyptic number.

It is an amenable number.

111120202012101 is a deficient number, since it is larger than the sum of its proper divisors (37040067337371).

111120202012101 is an equidigital number, since it uses as much as digits as its factorization.

111120202012101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37040067337370.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 111120202012101 its reverse (101210202021111), we get a palindrome (212330404033212).

The spelling of 111120202012101 in words is "one hundred eleven trillion, one hundred twenty billion, two hundred two million, twelve thousand, one hundred one".