101221012002001 has 8 divisors (see below), whose sum is σ = 101283514776864. Its totient is φ = 101158513513440.

The previous prime is 101221012001987. The next prime is 101221012002017. The reversal of 101221012002001 is 100200210122101.

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 101221012002001 - 2²⁵ = 101220978447569 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (101221012002601) 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, 46833466 + ... + 48947068.

It is an arithmetic number, because the mean of its divisors is an integer number (12660439347108).

Almost surely, 2^{101221012002001} is an apocalyptic number.

It is an amenable number.

101221012002001 is a deficient number, since it is larger than the sum of its proper divisors (62502774863).

101221012002001 is a wasteful number, since it uses less digits than its factorization.

101221012002001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2143151.

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

Adding to 101221012002001 its reverse (100200210122101), we get a palindrome (201421222124102).

The spelling of 101221012002001 in words is "one hundred one trillion, two hundred twenty-one billion, twelve million, two thousand, one".