2129133895121 has 32 divisors (see below), whose sum is σ = 2212818432000. Its totient is φ = 2047315435200.

The previous prime is 2129133895039. The next prime is 2129133895127. The reversal of 2129133895121 is 1215983319212.

It is a cyclic number.

It is not a de Polignac number, because 2129133895121 - 2¹⁴ = 2129133878737 is a prime.

It is a super-2 number, since 2×2129133895121² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2129133895127) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 471149300 + ... + 471153818.

It is an arithmetic number, because the mean of its divisors is an integer number (69150576000).

Almost surely, 2^{2129133895121} is an apocalyptic number.

It is an amenable number.

2129133895121 is a deficient number, since it is larger than the sum of its proper divisors (83684536879).

2129133895121 is a wasteful number, since it uses less digits than its factorization.

2129133895121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5349.

The product of its digits is 233280, while the sum is 47.

The spelling of 2129133895121 in words is "two trillion, one hundred twenty-nine billion, one hundred thirty-three million, eight hundred ninety-five thousand, one hundred twenty-one".