121002120020001 has 8 divisors (see below), whose sum is σ = 176003083665504. Its totient is φ = 73334618193920.

The previous prime is 121002120019967. The next prime is 121002120020017. The reversal of 121002120020001 is 100020021200121.

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 121002120020001 - 2²⁵ = 121002086465569 is a prime.

It is not an unprimeable number, because it can be changed into a prime (121002120020051) 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, 1833365454816 + ... + 1833365454881.

It is an arithmetic number, because the mean of its divisors is an integer number (22000385458188).

Almost surely, 2^{121002120020001} is an apocalyptic number.

121002120020001 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

121002120020001 is a deficient number, since it is larger than the sum of its proper divisors (55000963645503).

121002120020001 is a wasteful number, since it uses less digits than its factorization.

121002120020001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3666730909711.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 121002120020001 its reverse (100020021200121), we get a palindrome (221022141220122).

The spelling of 121002120020001 in words is "one hundred twenty-one trillion, two billion, one hundred twenty million, twenty thousand, one".