111211021222010 has 32 divisors (see below), whose sum is σ = 200453705769600. Its totient is φ = 44423565559488.

The previous prime is 111211021222009. The next prime is 111211021222019. The reversal of 111211021222010 is 10222120112111.

It is a self number, because there is not a number n which added to its sum of digits gives 111211021222010.

It is not an unprimeable number, because it can be changed into a prime (111211021222019) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52984016 + ... + 55042964.

It is an arithmetic number, because the mean of its divisors is an integer number (6264178305300).

Almost surely, 2^{111211021222010} is an apocalyptic number.

111211021222010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

111211021222010 is a deficient number, since it is larger than the sum of its proper divisors (89242684547590).

111211021222010 is a wasteful number, since it uses less digits than its factorization.

111211021222010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2066342.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 111211021222010 its reverse (10222120112111), we get a palindrome (121433141334121).

The spelling of 111211021222010 in words is "one hundred eleven trillion, two hundred eleven billion, twenty-one million, two hundred twenty-two thousand, ten".