1121210412 has 48 divisors (see below), whose sum is σ = 3093000960. Its totient is φ = 309298752.

The previous prime is 1121210411. The next prime is 1121210429. The reversal of 1121210412 is 2140121211.

It is a super-2 number, since 2×1121210412² = 2514225575954419488, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1121210391 and 1121210400.

It is not an unprimeable number, because it can be changed into a prime (1121210411) 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 15 ways as a sum of consecutive naturals, for example, 227698 + ... + 232569.

It is an arithmetic number, because the mean of its divisors is an integer number (64437520).

Almost surely, 2^1121210412 is an apocalyptic number.

1121210412 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1121210412 is an abundant number, since it is smaller than the sum of its proper divisors (1971790548).

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

1121210412 is a wasteful number, since it uses less digits than its factorization.

1121210412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 460310 (or 460308 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

The square root of 1121210412 is about 33484.4801661904. The cubic root of 1121210412 is about 1038.8727962268.

Adding to 1121210412 its reverse (2140121211), we get a palindrome (3261331623).

The spelling of 1121210412 in words is "one billion, one hundred twenty-one million, two hundred ten thousand, four hundred twelve".