1000122212112 has 40 divisors (see below), whose sum is σ = 2598082863840. Its totient is φ = 331511642880.

The previous prime is 1000122212081. The next prime is 1000122212149. The reversal of 1000122212112 is 2112122210001.

It is a junction number, because it is equal to n+sod(n) for n = 1000122212091 and 1000122212100.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58192189 + ... + 58209372.

It is an arithmetic number, because the mean of its divisors is an integer number (64952071596).

Almost surely, 2^{1000122212112} is an apocalyptic number.

1000122212112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1000122212112 is an abundant number, since it is smaller than the sum of its proper divisors (1597960651728).

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

1000122212112 is a wasteful number, since it uses less digits than its factorization.

1000122212112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116401751 (or 116401745 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 1000122212112 its reverse (2112122210001), we get a palindrome (3112244422113).

The spelling of 1000122212112 in words is "one trillion, one hundred twenty-two million, two hundred twelve thousand, one hundred twelve".