10121220112 has 20 divisors (see below), whose sum is σ = 19623650256. Its totient is φ = 5057052320.

The previous prime is 10121220097. The next prime is 10121220133. The reversal of 10121220112 is 21102212101.

It is a junction number, because it is equal to n+sod(n) for n = 10121220092 and 10121220101.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 198814 + ... + 244477.

Almost surely, 2^10121220112 is an apocalyptic number.

It is an amenable number.

10121220112 is a deficient number, since it is larger than the sum of its proper divisors (9502430144).

10121220112 is a wasteful number, since it uses less digits than its factorization.

10121220112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 444726 (or 444720 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 10121220112 its reverse (21102212101), we get a palindrome (31223432213).

The spelling of 10121220112 in words is "ten billion, one hundred twenty-one million, two hundred twenty thousand, one hundred twelve".