10211121112 has 32 divisors (see below), whose sum is σ = 19567941120. Its totient is φ = 4993167520.

The previous prime is 10211121023. The next prime is 10211121133. The reversal of 10211121112 is 21112111201.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 10211121092 and 10211121101.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 527037 + ... + 546067.

It is an arithmetic number, because the mean of its divisors is an integer number (611498160).

Almost surely, 2^10211121112 is an apocalyptic number.

It is an amenable number.

10211121112 is a deficient number, since it is larger than the sum of its proper divisors (9356820008).

10211121112 is a wasteful number, since it uses less digits than its factorization.

10211121112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20511 (or 20507 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 10211121112 its reverse (21112111201), we get a palindrome (31323232313).

The spelling of 10211121112 in words is "ten billion, two hundred eleven million, one hundred twenty-one thousand, one hundred twelve".