10111222101012 has 48 divisors (see below), whose sum is σ = 23601434744832. Its totient is φ = 3369181465440.

The previous prime is 10111222101007. The next prime is 10111222101017. The reversal of 10111222101012 is 21010122211101.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (10111222101007) and next prime (10111222101017).

It is a junction number, because it is equal to n+sod(n) for n = 10111222100982 and 10111222101000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10111222101017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 500967073 + ... + 500987255.

It is an arithmetic number, because the mean of its divisors is an integer number (491696557184).

Almost surely, 2^{10111222101012} is an apocalyptic number.

10111222101012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

10111222101012 is an abundant number, since it is smaller than the sum of its proper divisors (13490212643820).

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

10111222101012 is a wasteful number, since it uses less digits than its factorization.

10111222101012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33308 (or 33306 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 10111222101012 its reverse (21010122211101), we get a palindrome (31121344312113).

The spelling of 10111222101012 in words is "ten trillion, one hundred eleven billion, two hundred twenty-two million, one hundred one thousand, twelve".