121321021022112 has 48 divisors (see below), whose sum is σ = 318498975631872. Its totient is φ = 40436366315520.

The previous prime is 121321021022009. The next prime is 121321021022191. The reversal of 121321021022112 is 211220120123121.

It is a tau number, because it is divible by the number of its divisors (48).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 61112064 + ... + 63066047.

It is an arithmetic number, because the mean of its divisors is an integer number (6635395325664).

Almost surely, 2^{121321021022112} is an apocalyptic number.

121321021022112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

121321021022112 is an abundant number, since it is smaller than the sum of its proper divisors (197177954609760).

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

121321021022112 is a wasteful number, since it uses less digits than its factorization.

121321021022112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124188301 (or 124188293 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 21.

Adding to 121321021022112 its reverse (211220120123121), we get a palindrome (332541141145233).

The spelling of 121321021022112 in words is "one hundred twenty-one trillion, three hundred twenty-one billion, twenty-one million, twenty-two thousand, one hundred twelve".