102001001200121 has 8 divisors (see below), whose sum is σ = 102062124528000. Its totient is φ = 101939879154960.

The previous prime is 102001001200117. The next prime is 102001001200171. The reversal of 102001001200121 is 121002100100201.

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 102001001200121 - 2² = 102001001200117 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102001001200171) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 193880336 + ... + 194405726.

It is an arithmetic number, because the mean of its divisors is an integer number (12757765566000).

Almost surely, 2^{102001001200121} is an apocalyptic number.

It is an amenable number.

102001001200121 is a deficient number, since it is larger than the sum of its proper divisors (61123327879).

102001001200121 is a wasteful number, since it uses less digits than its factorization.

102001001200121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 641359.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 102001001200121 its reverse (121002100100201), we get a palindrome (223003101300322).

The spelling of 102001001200121 in words is "one hundred two trillion, one billion, one million, two hundred thousand, one hundred twenty-one".