112121212222210 has 64 divisors (see below), whose sum is σ = 205482810562560. Its totient is φ = 44035945120960.

The previous prime is 112121212222157. The next prime is 112121212222219. The reversal of 112121212222210 is 12222212121211.

It is not an unprimeable number, because it can be changed into a prime (112121212222219) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5031681729 + ... + 5031704011.

It is an arithmetic number, because the mean of its divisors is an integer number (3210668915040).

Almost surely, 2^{112121212222210} is an apocalyptic number.

112121212222210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

112121212222210 is a deficient number, since it is larger than the sum of its proper divisors (93361598340350).

112121212222210 is a wasteful number, since it uses less digits than its factorization.

112121212222210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32103.

The product of its (nonzero) digits is 256, while the sum is 22.

Adding to 112121212222210 its reverse (12222212121211), we get a palindrome (124343424343421).

The spelling of 112121212222210 in words is "one hundred twelve trillion, one hundred twenty-one billion, two hundred twelve million, two hundred twenty-two thousand, two hundred ten".