121010121012220 has 48 divisors (see below), whose sum is σ = 277224047100000. Its totient is φ = 44003543736320.

The previous prime is 121010121012199. The next prime is 121010121012223. The reversal of 121010121012220 is 22210121010121.

It is a junction number, because it is equal to n+sod(n) for n = 121010121012194 and 121010121012203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121010121012223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 94104156 + ... + 95381404.

It is an arithmetic number, because the mean of its divisors is an integer number (5775500981250).

Almost surely, 2^{121010121012220} is an apocalyptic number.

121010121012220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121010121012220 is an abundant number, since it is smaller than the sum of its proper divisors (156213926087780).

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

121010121012220 is a wasteful number, since it uses less digits than its factorization.

121010121012220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1707918 (or 1707916 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 121010121012220 its reverse (22210121010121), we get a palindrome (143220242022341).

The spelling of 121010121012220 in words is "one hundred twenty-one trillion, ten billion, one hundred twenty-one million, twelve thousand, two hundred twenty".