10111110212 has 18 divisors (see below), whose sum is σ = 20583331902. Its totient is φ = 4333332864.

The previous prime is 10111110209. The next prime is 10111110221. The reversal of 10111110212 is 21201111101.

It can be written as a sum of positive squares in only one way, i.e., 9614979136 + 496131076 = 98056^2 + 22274^2 .

It is a junction number, because it is equal to n+sod(n) for n = 10111110193 and 10111110202.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 25793453 + ... + 25793844.

It is an arithmetic number, because the mean of its divisors is an integer number (1143518439).

Almost surely, 2^10111110212 is an apocalyptic number.

It is an amenable number.

10111110212 is an abundant number, since it is smaller than the sum of its proper divisors (10472221690).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10111110212 is a wasteful number, since it uses less digits than its factorization.

10111110212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51587315 (or 51587306 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 10111110212 its reverse (21201111101), we get a palindrome (31312221313).

The spelling of 10111110212 in words is "ten billion, one hundred eleven million, one hundred ten thousand, two hundred twelve".