1150221870 has 160 divisors (see below), whose sum is σ = 3742884288. Its totient is φ = 247421952.

The previous prime is 1150221869. The next prime is 1150221883. The reversal of 1150221870 is 781220511.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 90424 + ... + 102356.

Almost surely, 2^1150221870 is an apocalyptic number.

1150221870 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 1150221870, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1871442144).

1150221870 is an abundant number, since it is smaller than the sum of its proper divisors (2592662418).

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

1150221870 is a wasteful number, since it uses less digits than its factorization.

1150221870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11976 (or 11967 counting only the distinct ones).

The product of its (nonzero) digits is 1120, while the sum is 27.

The square root of 1150221870 is about 33914.9210525397. The cubic root of 1150221870 is about 1047.7569259061.

The spelling of 1150221870 in words is "one billion, one hundred fifty million, two hundred twenty-one thousand, eight hundred seventy".