121110220122200 has 96 divisors (see below), whose sum is σ = 285715915198560. Its totient is φ = 47733556147200.

The previous prime is 121110220122173. The next prime is 121110220122263. The reversal of 121110220122200 is 2221022011121.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 21521732 + ... + 26559468.

It is an arithmetic number, because the mean of its divisors is an integer number (2976207449985).

Almost surely, 2^{121110220122200} is an apocalyptic number.

121110220122200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 121110220122200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (142857957599280).

121110220122200 is an abundant number, since it is smaller than the sum of its proper divisors (164605695076360).

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

121110220122200 is a wasteful number, since it uses less digits than its factorization.

121110220122200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5039517 (or 5039508 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 121110220122200 its reverse (2221022011121), we get a palindrome (123331242133321).

The spelling of 121110220122200 in words is "one hundred twenty-one trillion, one hundred ten billion, two hundred twenty million, one hundred twenty-two thousand, two hundred".