121440201212000 has 192 divisors, whose sum is σ = 325545446640960. Its totient is φ = 44154436608000.

The previous prime is 121440201211943. The next prime is 121440201212069. The reversal of 121440201212000 is 212102044121.

It is a super-2 number, since 2×121440201212000² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 352575866 + ... + 352920134.

It is an arithmetic number, because the mean of its divisors is an integer number (1695549201255).

Almost surely, 2^{121440201212000} is an apocalyptic number.

121440201212000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 121440201212000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (162772723320480).

121440201212000 is an abundant number, since it is smaller than the sum of its proper divisors (204105245428960).

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

121440201212000 is a wasteful number, since it uses less digits than its factorization.

121440201212000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 352322 (or 352304 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 121440201212000 its reverse (212102044121), we get a palindrome (121652303256121).

The spelling of 121440201212000 in words is "one hundred twenty-one trillion, four hundred forty billion, two hundred one million, two hundred twelve thousand".