121022021002120 has 32 divisors (see below), whose sum is σ = 311199482577600. Its totient is φ = 41493264343488.

The previous prime is 121022021002097. The next prime is 121022021002187. The reversal of 121022021002120 is 21200120220121.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 121022021002094 and 121022021002103.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 216110751510 + ... + 216110752069.

It is an arithmetic number, because the mean of its divisors is an integer number (9724983830550).

Almost surely, 2^{121022021002120} is an apocalyptic number.

121022021002120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121022021002120 is an abundant number, since it is smaller than the sum of its proper divisors (190177461575480).

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

121022021002120 is a wasteful number, since it uses less digits than its factorization.

121022021002120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 432221503597 (or 432221503593 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 121022021002120 its reverse (21200120220121), we get a palindrome (142222141222241).

The spelling of 121022021002120 in words is "one hundred twenty-one trillion, twenty-two billion, twenty-one million, two thousand, one hundred twenty".