121020010211100 has 288 divisors, whose sum is σ = 470133120554496. Its totient is φ = 23212629273600.

The previous prime is 121020010211099. The next prime is 121020010211167. The reversal of 121020010211100 is 1112010020121.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 201198219 + ... + 201798818.

It is an arithmetic number, because the mean of its divisors is an integer number (1632406668592).

Almost surely, 2^{121020010211100} is an apocalyptic number.

121020010211100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121020010211100 is an abundant number, since it is smaller than the sum of its proper divisors (349113110343396).

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

121020010211100 is a wasteful number, since it uses less digits than its factorization.

121020010211100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 402997085 (or 402997078 counting only the distinct ones).

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

Adding to 121020010211100 its reverse (1112010020121), we get a palindrome (122132020231221).

The spelling of 121020010211100 in words is "one hundred twenty-one trillion, twenty billion, ten million, two hundred eleven thousand, one hundred".