121010210221120 has 112 divisors (see below), whose sum is σ = 314355577536000. Its totient is φ = 44003145297920.

The previous prime is 121010210221081. The next prime is 121010210221123. The reversal of 121010210221120 is 21122012010121.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a junction number, because it is equal to n+sod(n) for n = 121010210221094 and 121010210221103.

It is not an unprimeable number, because it can be changed into a prime (121010210221123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 352423281 + ... + 352766479.

It is an arithmetic number, because the mean of its divisors is an integer number (2806746228000).

Almost surely, 2^{121010210221120} is an apocalyptic number.

121010210221120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121010210221120 is an abundant number, since it is smaller than the sum of its proper divisors (193345367314880).

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

121010210221120 is a wasteful number, since it uses less digits than its factorization.

121010210221120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 443396 (or 443386 counting only the distinct ones).

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

Adding to 121010210221120 its reverse (21122012010121), we get a palindrome (142132222231241).

The spelling of 121010210221120 in words is "one hundred twenty-one trillion, ten billion, two hundred ten million, two hundred twenty-one thousand, one hundred twenty".