111021210201 has 16 divisors (see below), whose sum is σ = 161503596288. Its totient is φ = 67277998800.

The previous prime is 111021210163. The next prime is 111021210211. The reversal of 111021210201 is 102012120111.

It is not a de Polignac number, because 111021210201 - 2¹¹ = 111021208153 is a prime.

It is a super-2 number, since 2×111021210201² (a number of 23 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (111021210211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 114970 + ... + 485036.

It is an arithmetic number, because the mean of its divisors is an integer number (10093974768).

Almost surely, 2^111021210201 is an apocalyptic number.

111021210201 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

111021210201 is a deficient number, since it is larger than the sum of its proper divisors (50482386087).

111021210201 is a wasteful number, since it uses less digits than its factorization.

111021210201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 379172.

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

Adding to 111021210201 its reverse (102012120111), we get a palindrome (213033330312).

The spelling of 111021210201 in words is "one hundred eleven billion, twenty-one million, two hundred ten thousand, two hundred one".