121100120101020 has 48 divisors (see below), whose sum is σ = 350772761676960. Its totient is φ = 31179801037056.

The previous prime is 121100120101013. The next prime is 121100120101043. The reversal of 121100120101020 is 20101021001121.

121100120101020 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 (12).

It is a junction number, because it is equal to n+sod(n) for n = 121100120100987 and 121100120101005.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34798883347 + ... + 34798886826.

It is an arithmetic number, because the mean of its divisors is an integer number (7307765868270).

Almost surely, 2^{121100120101020} is an apocalyptic number.

121100120101020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121100120101020 is an abundant number, since it is smaller than the sum of its proper divisors (229672641575940).

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

121100120101020 is a wasteful number, since it uses less digits than its factorization.

121100120101020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69597770214 (or 69597770212 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 121100120101020 its reverse (20101021001121), we get a palindrome (141201141102141).

The spelling of 121100120101020 in words is "one hundred twenty-one trillion, one hundred billion, one hundred twenty million, one hundred one thousand, twenty".