1001201112 has 48 divisors (see below), whose sum is σ = 2744272440. Its totient is φ = 329710848.

The previous prime is 1001201101. The next prime is 1001201137. The reversal of 1001201112 is 2111021001.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 1001201094 and 1001201103.

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, 77793 + ... + 89744.

Almost surely, 2^1001201112 is an apocalyptic number.

1001201112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1001201112 is an abundant number, since it is smaller than the sum of its proper divisors (1743071328).

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

1001201112 is a wasteful number, since it uses less digits than its factorization.

1001201112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167632 (or 167625 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

The square root of 1001201112 is about 31641.7621506768. The cubic root of 1001201112 is about 1000.4002104769.

Adding to 1001201112 its reverse (2111021001), we get a palindrome (3112222113).

The spelling of 1001201112 in words is "one billion, one million, two hundred one thousand, one hundred twelve".