1020112111122 has 48 divisors (see below), whose sum is σ = 2212914136608. Its totient is φ = 313358198400.

The previous prime is 1020112111121. The next prime is 1020112111153. The reversal of 1020112111122 is 2211112110201.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1020112111121) 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 23 ways as a sum of consecutive naturals, for example, 227548 + ... + 1446375.

It is an arithmetic number, because the mean of its divisors is an integer number (46102377846).

Almost surely, 2^{1020112111122} is an apocalyptic number.

1020112111122 is an abundant number, since it is smaller than the sum of its proper divisors (1192802025486).

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

1020112111122 is a wasteful number, since it uses less digits than its factorization.

1020112111122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1674555 (or 1674542 counting only the distinct ones).

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

Adding to 1020112111122 its reverse (2211112110201), we get a palindrome (3231224221323).

The spelling of 1020112111122 in words is "one trillion, twenty billion, one hundred twelve million, one hundred eleven thousand, one hundred twenty-two".