1131220210 has 16 divisors (see below), whose sum is σ = 2036976192. Its totient is φ = 452314800.

The previous prime is 1131220199. The next prime is 1131220241. The reversal of 1131220210 is 120221311.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7645 + ... + 48175.

It is an arithmetic number, because the mean of its divisors is an integer number (127311012).

Almost surely, 2^1131220210 is an apocalyptic number.

1131220210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1131220210 is a deficient number, since it is larger than the sum of its proper divisors (905755982).

1131220210 is a wasteful number, since it uses less digits than its factorization.

1131220210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43329.

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 1131220210 is about 33633.6172601164. The cubic root of 1131220210 is about 1041.9552130204.

Adding to 1131220210 its reverse (120221311), we get a palindrome (1251441521).

The spelling of 1131220210 in words is "one billion, one hundred thirty-one million, two hundred twenty thousand, two hundred ten".