1140101220 has 24 divisors (see below), whose sum is σ = 3192283584. Its totient is φ = 304026976.

The previous prime is 1140101203. The next prime is 1140101233. The reversal of 1140101220 is 221010411.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 1140101196 and 1140101205.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9500784 + ... + 9500903.

It is an arithmetic number, because the mean of its divisors is an integer number (133011816).

Almost surely, 2^1140101220 is an apocalyptic number.

1140101220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1140101220 is an abundant number, since it is smaller than the sum of its proper divisors (2052182364).

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

1140101220 is a wasteful number, since it uses less digits than its factorization.

1140101220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19001699 (or 19001697 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

The square root of 1140101220 is about 33765.3849378324. The cubic root of 1140101220 is about 1044.6748437021.

Adding to 1140101220 its reverse (221010411), we get a palindrome (1361111631).

The spelling of 1140101220 in words is "one billion, one hundred forty million, one hundred one thousand, two hundred twenty".