10121203232121 has 16 divisors (see below), whose sum is σ = 13717132672320. Its totient is φ = 6636386896320.

The previous prime is 10121203232057. The next prime is 10121203232149. The reversal of 10121203232121 is 12123230212101.

10121203232121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 10121203232121 - 2⁶ = 10121203232057 is a prime.

It is a super-3 number, since 3×10121203232121³ (a number of 40 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (10121203232171) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 664915 + ... + 4548023.

It is an arithmetic number, because the mean of its divisors is an integer number (857320792020).

Almost surely, 2^{10121203232121} is an apocalyptic number.

It is an amenable number.

10121203232121 is a deficient number, since it is larger than the sum of its proper divisors (3595929440199).

10121203232121 is a wasteful number, since it uses less digits than its factorization.

10121203232121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3897416.

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 10121203232121 its reverse (12123230212101), we get a palindrome (22244433444222).

It can be divided in two parts, 1012120 and 3232121, that added together give a triangular number (4244241 = T₂₉₁₃).

The spelling of 10121203232121 in words is "ten trillion, one hundred twenty-one billion, two hundred three million, two hundred thirty-two thousand, one hundred twenty-one".