111221111101002 has 48 divisors (see below), whose sum is σ = 258765017162400. Its totient is φ = 31776760626912.

The previous prime is 111221111100991. The next prime is 111221111101007. The reversal of 111221111101002 is 200101111122111.

It is not an unprimeable number, because it can be changed into a prime (111221111101007) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9284124 + ... + 17568072.

It is an arithmetic number, because the mean of its divisors is an integer number (5390937857550).

Almost surely, 2^{111221111101002} is an apocalyptic number.

111221111101002 is an abundant number, since it is smaller than the sum of its proper divisors (147543906061398).

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

111221111101002 is a wasteful number, since it uses less digits than its factorization.

111221111101002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8329635 (or 8329628 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 15.

Adding to 111221111101002 its reverse (200101111122111), we get a palindrome (311322222223113).

The spelling of 111221111101002 in words is "one hundred eleven trillion, two hundred twenty-one billion, one hundred eleven million, one hundred one thousand, two".