1116021250 has 20 divisors (see below), whose sum is σ = 2091872574. Its totient is φ = 446408000.

The previous prime is 1116021241. The next prime is 1116021289. The reversal of 1116021250 is 521206111.

It can be written as a sum of positive squares in 5 ways, for example, as 218359729 + 897661521 = 14777^2 + 29961^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 445159 + ... + 447658.

Almost surely, 2^1116021250 is an apocalyptic number.

1116021250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1116021250 is a deficient number, since it is larger than the sum of its proper divisors (975851324).

1116021250 is an frugal number, since it uses more digits than its factorization.

1116021250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 892839 (or 892824 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 19.

The square root of 1116021250 is about 33406.9042265218. The cubic root of 1116021250 is about 1037.2676210578.

Adding to 1116021250 its reverse (521206111), we get a palindrome (1637227361).

The spelling of 1116021250 in words is "one billion, one hundred sixteen million, twenty-one thousand, two hundred fifty".