121221022001120 has 48 divisors (see below), whose sum is σ = 298836171637920. Its totient is φ = 46380217112064.

The previous prime is 121221022001111. The next prime is 121221022001161. The reversal of 121221022001120 is 21100220122121.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16470243875 + ... + 16470251234.

It is an arithmetic number, because the mean of its divisors is an integer number (6225753575790).

Almost surely, 2^{121221022001120} is an apocalyptic number.

121221022001120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121221022001120 is an abundant number, since it is smaller than the sum of its proper divisors (177615149636800).

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

121221022001120 is a wasteful number, since it uses less digits than its factorization.

121221022001120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32940495147 (or 32940495139 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 121221022001120 its reverse (21100220122121), we get a palindrome (142321242123241).

The spelling of 121221022001120 in words is "one hundred twenty-one trillion, two hundred twenty-one billion, twenty-two million, one thousand, one hundred twenty".