10111222012 has 48 divisors (see below), whose sum is σ = 19079424000. Its totient is φ = 4677785280.

The previous prime is 10111222007. The next prime is 10111222021. The reversal of 10111222012 is 21022211101.

It is a junction number, because it is equal to n+sod(n) for n = 10111221983 and 10111222001.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 356739 + ... + 384037.

It is an arithmetic number, because the mean of its divisors is an integer number (397488000).

Almost surely, 2^10111222012 is an apocalyptic number.

It is an amenable number.

10111222012 is a deficient number, since it is larger than the sum of its proper divisors (8968201988).

10111222012 is a wasteful number, since it uses less digits than its factorization.

10111222012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27466 (or 27464 counting only the distinct ones).

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

Adding to 10111222012 its reverse (21022211101), we get a palindrome (31133433113).

The spelling of 10111222012 in words is "ten billion, one hundred eleven million, two hundred twenty-two thousand, twelve".