10201211121 has 8 divisors (see below), whose sum is σ = 13614086304. Its totient is φ = 6794571680.

The previous prime is 10201211117. The next prime is 10201211143. The reversal of 10201211121 is 12111210201.

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 10201211121 - 2² = 10201211117 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 10201211097 and 10201211106.

It is not an unprimeable number, because it can be changed into a prime (10201211101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1555116 + ... + 1561661.

It is an arithmetic number, because the mean of its divisors is an integer number (1701760788).

Almost surely, 2^10201211121 is an apocalyptic number.

It is an amenable number.

10201211121 is a deficient number, since it is larger than the sum of its proper divisors (3412875183).

10201211121 is a wasteful number, since it uses less digits than its factorization.

10201211121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3117871.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 10201211121 its reverse (12111210201), we get a palindrome (22312421322).

The spelling of 10201211121 in words is "ten billion, two hundred one million, two hundred eleven thousand, one hundred twenty-one".