10121111122 has 4 divisors (see below), whose sum is σ = 15181666686. Its totient is φ = 5060555560.

The previous prime is 10121111101. The next prime is 10121111191. The reversal of 10121111122 is 22111112101.

It is a happy number.

10121111122 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 7120153161 + 3000957961 = 84381^2 + 54781^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2530277779 + ... + 2530277782.

Almost surely, 2^10121111122 is an apocalyptic number.

10121111122 is a deficient number, since it is larger than the sum of its proper divisors (5060555564).

10121111122 is an equidigital number, since it uses as much as digits as its factorization.

10121111122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5060555563.

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

Adding to 10121111122 its reverse (22111112101), we get a palindrome (32232223223).

The spelling of 10121111122 in words is "ten billion, one hundred twenty-one million, one hundred eleven thousand, one hundred twenty-two".