1121203210 has 16 divisors (see below), whose sum is σ = 2136881736. Its totient is φ = 422099968.

The previous prime is 1121203201. The next prime is 1121203217. The reversal of 1121203210 is 123021211.

It can be written as a sum of positive squares in 4 ways, for example, as 1042579521 + 78623689 = 32289^2 + 8867^2 .

It is a super-2 number, since 2×1121203210² = 2514193276228608200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1121203217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3297487 + ... + 3297826.

Almost surely, 2^1121203210 is an apocalyptic number.

1121203210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1121203210 is a deficient number, since it is larger than the sum of its proper divisors (1015678526).

1121203210 is a wasteful number, since it uses less digits than its factorization.

1121203210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6595337.

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

The square root of 1121203210 is about 33484.3726236583. The cubic root of 1121203210 is about 1038.8705718516.

Adding to 1121203210 its reverse (123021211), we get a palindrome (1244224421).

The spelling of 1121203210 in words is "one billion, one hundred twenty-one million, two hundred three thousand, two hundred ten".