121001002120203 has 8 divisors (see below), whose sum is σ = 168349220341248. Its totient is φ = 77160059322984.

The previous prime is 121001002120183. The next prime is 121001002120213. The reversal of 121001002120203 is 302021200100121.

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

It is not a de Polignac number, because 121001002120203 - 2²¹ = 121001000023051 is a prime.

It is a super-2 number, since 2×121001002120203² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (121001002120213) 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, 876818855875 + ... + 876818856012.

It is an arithmetic number, because the mean of its divisors is an integer number (21043652542656).

Almost surely, 2^{121001002120203} is an apocalyptic number.

121001002120203 is a deficient number, since it is larger than the sum of its proper divisors (47348218221045).

121001002120203 is a wasteful number, since it uses less digits than its factorization.

121001002120203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1753637711913.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 121001002120203 its reverse (302021200100121), we get a palindrome (423022202220324).

The spelling of 121001002120203 in words is "one hundred twenty-one trillion, one billion, two million, one hundred twenty thousand, two hundred three".