121100222002110 has 512 divisors, whose sum is σ = 342854281986048. Its totient is φ = 27129820354560.

The previous prime is 121100222002069. The next prime is 121100222002129. The reversal of 121100222002110 is 11200222001121.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 121100222002110.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 255 ways as a sum of consecutive naturals, for example, 25067317395 + ... + 25067322225.

It is an arithmetic number, because the mean of its divisors is an integer number (669637269504).

Almost surely, 2^{121100222002110} is an apocalyptic number.

121100222002110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 121100222002110, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (171427140993024).

121100222002110 is an abundant number, since it is smaller than the sum of its proper divisors (221754059983938).

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

121100222002110 is a wasteful number, since it uses less digits than its factorization.

121100222002110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6568.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 121100222002110 its reverse (11200222001121), we get a palindrome (132300444003231).

The spelling of 121100222002110 in words is "one hundred twenty-one trillion, one hundred billion, two hundred twenty-two million, two thousand, one hundred ten".