121011001120200 has 96 divisors (see below), whose sum is σ = 384283715830560. Its totient is φ = 31482536870400.

The previous prime is 121011001120153. The next prime is 121011001120201. The reversal of 121011001120200 is 2021100110121.

It is a super-2 number, since 2×121011001120200² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is not an unprimeable number, because it can be changed into a prime (121011001120201) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 2459548594 + ... + 2459597793.

It is an arithmetic number, because the mean of its divisors is an integer number (4002955373235).

Almost surely, 2^{121011001120200} is an apocalyptic number.

121011001120200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121011001120200 is an abundant number, since it is smaller than the sum of its proper divisors (263272714710360).

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

121011001120200 is a wasteful number, since it uses less digits than its factorization.

121011001120200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4919146447 (or 4919146438 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 121011001120200 its reverse (2021100110121), we get a palindrome (123032101230321).

The spelling of 121011001120200 in words is "one hundred twenty-one trillion, eleven billion, one million, one hundred twenty thousand, two hundred".