10201112121 has 8 divisors (see below), whose sum is σ = 13969090624. Its totient is φ = 6616937520.

The previous prime is 10201112113. The next prime is 10201112147. The reversal of 10201112121 is 12121110201.

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

It is not a de Polignac number, because 10201112121 - 2³ = 10201112113 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10201112097 and 10201112106.

It is not an unprimeable number, because it can be changed into a prime (10201112161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45950845 + ... + 45951066.

It is an arithmetic number, because the mean of its divisors is an integer number (1746136328).

Almost surely, 2^10201112121 is an apocalyptic number.

It is an amenable number.

10201112121 is a deficient number, since it is larger than the sum of its proper divisors (3767978503).

10201112121 is an equidigital number, since it uses as much as digits as its factorization.

10201112121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91901951.

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

Adding to 10201112121 its reverse (12121110201), we get a palindrome (22322222322).

The spelling of 10201112121 in words is "ten billion, two hundred one million, one hundred twelve thousand, one hundred twenty-one".