921122121221129 has 8 divisors (see below), whose sum is σ = 936739969163520. Its totient is φ = 905504460232176.

The previous prime is 921122121221053. The next prime is 921122121221131.

921122121221129 is nontrivially palindromic in base 10.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-921122121221129 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 921122121221092 and 921122121221101.

It is not an unprimeable number, because it can be changed into a prime (921122121721129) 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, 36782969 + ... + 56526374.

It is an arithmetic number, because the mean of its divisors is an integer number (117092496145440).

Almost surely, 2^{921122121221129} is an apocalyptic number.

It is an amenable number.

921122121221129 is a deficient number, since it is larger than the sum of its proper divisors (15617847942391).

921122121221129 is a wasteful number, since it uses less digits than its factorization.

921122121221129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93476719.

The product of its digits is 10368, while the sum is 38.

The spelling of 921122121221129 in words is "nine hundred twenty-one trillion, one hundred twenty-two billion, one hundred twenty-one million, two hundred twenty-one thousand, one hundred twenty-nine".