121020200101120 has 72 divisors (see below), whose sum is σ = 292695578937216. Its totient is φ = 47938098628608.

The previous prime is 121020200101117. The next prime is 121020200101121. The reversal of 121020200101120 is 21101002020121.

It is a self number, because there is not a number n which added to its sum of digits gives 121020200101120.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121020200101121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 458834332 + ... + 459098011.

It is an arithmetic number, because the mean of its divisors is an integer number (4065216374128).

Almost surely, 2^{121020200101120} is an apocalyptic number.

121020200101120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121020200101120 is an abundant number, since it is smaller than the sum of its proper divisors (171675378836096).

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

121020200101120 is an equidigital number, since it uses as much as digits as its factorization.

121020200101120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 917932467 (or 917932453 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 121020200101120 its reverse (21101002020121), we get a palindrome (142121202121241).

The spelling of 121020200101120 in words is "one hundred twenty-one trillion, twenty billion, two hundred million, one hundred one thousand, one hundred twenty".