1000122112 has 108 divisors (see below), whose sum is σ = 2226467880. Its totient is φ = 447969280.

The previous prime is 1000122091. The next prime is 1000122161. The reversal of 1000122112 is 2112210001.

It is a super-2 number, since 2×1000122112² = 2000488477822681088, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2570814 + ... + 2571202.

Almost surely, 2^1000122112 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1000122112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1113233940).

1000122112 is an abundant number, since it is smaller than the sum of its proper divisors (1226345768).

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

1000122112 is an equidigital number, since it uses as much as digits as its factorization.

1000122112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 510 (or 485 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

The square root of 1000122112 is about 31624.7073029933. The cubic root of 1000122112 is about 1000.0407023433.

Adding to 1000122112 its reverse (2112210001), we get a palindrome (3112332113).

The spelling of 1000122112 in words is "one billion, one hundred twenty-two thousand, one hundred twelve".