121012220100120 has 32 divisors (see below), whose sum is σ = 363036660300720. Its totient is φ = 32269925360000.

The previous prime is 121012220100073. The next prime is 121012220100151. The reversal of 121012220100120 is 21001022210121.

121012220100120 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 121012220100120.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 504217583631 + ... + 504217583870.

Almost surely, 2^{121012220100120} is an apocalyptic number.

121012220100120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121012220100120 is an abundant number, since it is smaller than the sum of its proper divisors (242024440200600).

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

121012220100120 is a wasteful number, since it uses less digits than its factorization.

121012220100120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1008435167515 (or 1008435167511 counting only the distinct ones).

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

Adding to 121012220100120 its reverse (21001022210121), we get a palindrome (142013242310241).

The spelling of 121012220100120 in words is "one hundred twenty-one trillion, twelve billion, two hundred twenty million, one hundred thousand, one hundred twenty".