1001121150 has 96 divisors (see below), whose sum is σ = 2551408128. Its totient is φ = 259660800.

The previous prime is 1001121133. The next prime is 1001121179. The reversal of 1001121150 is 511211001.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1487214 + ... + 1487886.

It is an arithmetic number, because the mean of its divisors is an integer number (26577168).

Almost surely, 2^1001121150 is an apocalyptic number.

1001121150 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1001121150, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1275704064).

1001121150 is an abundant number, since it is smaller than the sum of its proper divisors (1550286978).

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

1001121150 is a wasteful number, since it uses less digits than its factorization.

1001121150 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 946 (or 941 counting only the distinct ones).

The product of its (nonzero) digits is 10, while the sum is 12.

The square root of 1001121150 is about 31640.4985738215. The cubic root of 1001121150 is about 1000.3735770894.

Adding to 1001121150 its reverse (511211001), we get a palindrome (1512332151).

The spelling of 1001121150 in words is "one billion, one million, one hundred twenty-one thousand, one hundred fifty".