111211221002 has 32 divisors (see below), whose sum is σ = 207155527680. Its totient is φ = 43696862640.

The previous prime is 111211220987. The next prime is 111211221067. The reversal of 111211221002 is 200122112111.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6735098 + ... + 6751589.

It is an arithmetic number, because the mean of its divisors is an integer number (6473610240).

Almost surely, 2^111211221002 is an apocalyptic number.

111211221002 is a deficient number, since it is larger than the sum of its proper divisors (95944306678).

111211221002 is a wasteful number, since it uses less digits than its factorization.

111211221002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13486746.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 111211221002 its reverse (200122112111), we get a palindrome (311333333113).

The spelling of 111211221002 in words is "one hundred eleven billion, two hundred eleven million, two hundred twenty-one thousand, two".