121200102001 has 8 divisors (see below), whose sum is σ = 132439032000. Its totient is φ = 109997961840.

The previous prime is 121200101951. The next prime is 121200102007. The reversal of 121200102001 is 100201002121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 121200102001 - 2¹⁹ = 121199577713 is a prime.

It is not an unprimeable number, because it can be changed into a prime (121200102007) 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, 9190566 + ... + 9203743.

It is an arithmetic number, because the mean of its divisors is an integer number (16554879000).

Almost surely, 2^121200102001 is an apocalyptic number.

121200102001 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

121200102001 is a deficient number, since it is larger than the sum of its proper divisors (11238929999).

121200102001 is a wasteful number, since it uses less digits than its factorization.

121200102001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18394919.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 121200102001 its reverse (100201002121), we get a palindrome (221401104122).

The spelling of 121200102001 in words is "one hundred twenty-one billion, two hundred million, one hundred two thousand, one".