111011020000002 has 96 divisors (see below), whose sum is σ = 255878642073600. Its totient is φ = 34684801662816.

The previous prime is 111011019999953. The next prime is 111011020000061. The reversal of 111011020000002 is 200000020110111.

It is a happy number.

It is a super-2 number, since 2×111011020000002² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 7966399 + ... + 16896317.

It is an arithmetic number, because the mean of its divisors is an integer number (2665402521600).

Almost surely, 2^{111011020000002} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 111011020000002, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (127939321036800).

111011020000002 is an abundant number, since it is smaller than the sum of its proper divisors (144867622073598).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

111011020000002 is a wasteful number, since it uses less digits than its factorization.

111011020000002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8930332 (or 8930329 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 111011020000002 its reverse (200000020110111), we get a palindrome (311011040110113).

The spelling of 111011020000002 in words is "one hundred eleven trillion, eleven billion, twenty million, two", and thus it is an aban number.