10212101121 has 32 divisors (see below), whose sum is σ = 14166811008. Its totient is φ = 6537922560.

The previous prime is 10212101087. The next prime is 10212101147. The reversal of 10212101121 is 12110121201.

It is not a de Polignac number, because 10212101121 - 2¹³ = 10212092929 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 10212101097 and 10212101106.

It is not an unprimeable number, because it can be changed into a prime (10212101191) 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, 4768711 + ... + 4770851.

It is an arithmetic number, because the mean of its divisors is an integer number (442712844).

Almost surely, 2^10212101121 is an apocalyptic number.

It is an amenable number.

10212101121 is a deficient number, since it is larger than the sum of its proper divisors (3954709887).

10212101121 is a wasteful number, since it uses less digits than its factorization.

10212101121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2721.

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

Adding to 10212101121 its reverse (12110121201), we get a palindrome (22322222322).

The spelling of 10212101121 in words is "ten billion, two hundred twelve million, one hundred one thousand, one hundred twenty-one".