111102220121210 has 8 divisors (see below), whose sum is σ = 199983996218196. Its totient is φ = 44440888048480.

The previous prime is 111102220121209. The next prime is 111102220121251. The reversal of 111102220121210 is 12121022201111.

It can be written as a sum of positive squares in 2 ways, for example, as 111013596617401 + 88623503809 = 10536299^2 + 297697^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5555111006051 + ... + 5555111006070.

Almost surely, 2^{111102220121210} is an apocalyptic number.

111102220121210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

111102220121210 is a deficient number, since it is larger than the sum of its proper divisors (88881776096986).

111102220121210 is a wasteful number, since it uses less digits than its factorization.

111102220121210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11110222012128.

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

Adding to 111102220121210 its reverse (12121022201111), we get a palindrome (123223242322321).

The spelling of 111102220121210 in words is "one hundred eleven trillion, one hundred two billion, two hundred twenty million, one hundred twenty-one thousand, two hundred ten".