1212241120 has 48 divisors (see below), whose sum is σ = 2866933440. Its totient is φ = 484386304.

The previous prime is 1212241103. The next prime is 1212241123. The reversal of 1212241120 is 211422121.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a junction number, because it is equal to n+sod(n) for n = 1212241094 and 1212241103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1212241123) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 173046 + ... + 179914.

It is an arithmetic number, because the mean of its divisors is an integer number (59727780).

Almost surely, 2^1212241120 is an apocalyptic number.

1212241120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1212241120 is an abundant number, since it is smaller than the sum of its proper divisors (1654692320).

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

1212241120 is a wasteful number, since it uses less digits than its factorization.

1212241120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7987 (or 7979 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

The square root of 1212241120 is about 34817.2531943575. The cubic root of 1212241120 is about 1066.2597215018.

Adding to 1212241120 its reverse (211422121), we get a palindrome (1423663241).

The spelling of 1212241120 in words is "one billion, two hundred twelve million, two hundred forty-one thousand, one hundred twenty".