10122001121 has 8 divisors (see below), whose sum is σ = 10205472360. Its totient is φ = 10038817152.

The previous prime is 10122001079. The next prime is 10122001159. The reversal of 10122001121 is 12110022101.

It can be written as a sum of positive squares in 4 ways, for example, as 9022150225 + 1099850896 = 94985^2 + 33164^2 .

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 10122001121 - 2¹⁴ = 10121984737 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10122001181) 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, 770 + ... + 142283.

It is an arithmetic number, because the mean of its divisors is an integer number (1275684045).

Almost surely, 2^10122001121 is an apocalyptic number.

It is an amenable number.

10122001121 is a deficient number, since it is larger than the sum of its proper divisors (83471239).

10122001121 is a wasteful number, since it uses less digits than its factorization.

10122001121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143635.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 10122001121 its reverse (12110022101), we get a palindrome (22232023222).

The spelling of 10122001121 in words is "ten billion, one hundred twenty-two million, one thousand, one hundred twenty-one".