111122101002 has 64 divisors (see below), whose sum is σ = 245657857536. Its totient is φ = 33228538560.

The previous prime is 111122100979. The next prime is 111122101033. The reversal of 111122101002 is 200101221111.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4825588 + ... + 4848560.

It is an arithmetic number, because the mean of its divisors is an integer number (3838404024).

Almost surely, 2^111122101002 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 111122101002, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (122828928768).

111122101002 is an abundant number, since it is smaller than the sum of its proper divisors (134535756534).

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

111122101002 is a wasteful number, since it uses less digits than its factorization.

111122101002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23955.

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

Adding to 111122101002 its reverse (200101221111), we get a palindrome (311223322113).

The spelling of 111122101002 in words is "one hundred eleven billion, one hundred twenty-two million, one hundred one thousand, two".