111022012101 has 96 divisors (see below), whose sum is σ = 202508038656. Its totient is φ = 53183088000.

The previous prime is 111022012019. The next prime is 111022012103. The reversal of 111022012101 is 101210220111.

It is not a de Polignac number, because 111022012101 - 2⁷ = 111022011973 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111022012103) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 27136066 + ... + 27140156.

It is an arithmetic number, because the mean of its divisors is an integer number (2109458736).

Almost surely, 2^111022012101 is an apocalyptic number.

111022012101 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

111022012101 is a deficient number, since it is larger than the sum of its proper divisors (91486026555).

111022012101 is a wasteful number, since it uses less digits than its factorization.

111022012101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5423 (or 5416 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 111022012101 its reverse (101210220111), we get a palindrome (212232232212).

The spelling of 111022012101 in words is "one hundred eleven billion, twenty-two million, twelve thousand, one hundred one".