121102100202220 has 48 divisors (see below), whose sum is σ = 255944898296640. Its totient is φ = 48130515062784.

The previous prime is 121102100202169. The next prime is 121102100202229. The reversal of 121102100202220 is 22202001201121.

It is a happy number.

121102100202220 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 121102100202194 and 121102100202203.

It is not an unprimeable number, because it can be changed into a prime (121102100202229) 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, 312316 + ... + 15566044.

It is an arithmetic number, because the mean of its divisors is an integer number (5332185381180).

Almost surely, 2^{121102100202220} is an apocalyptic number.

121102100202220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121102100202220 is an abundant number, since it is smaller than the sum of its proper divisors (134842798094420).

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

121102100202220 is a wasteful number, since it uses less digits than its factorization.

121102100202220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15256282 (or 15256280 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 121102100202220 its reverse (22202001201121), we get a palindrome (143304101403341).

The spelling of 121102100202220 in words is "one hundred twenty-one trillion, one hundred two billion, one hundred million, two hundred two thousand, two hundred twenty".