1212024121 has 16 divisors (see below), whose sum is σ = 1514741760. Its totient is φ = 942155280.

The previous prime is 1212024071. The next prime is 1212024137. The reversal of 1212024121 is 1214202121.

It is not a de Polignac number, because 1212024121 - 2¹⁷ = 1211893049 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1212024095 and 1212024104.

It is not an unprimeable number, because it can be changed into a prime (1212024181) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 13480 + ... + 51046.

It is an arithmetic number, because the mean of its divisors is an integer number (94671360).

Almost surely, 2^1212024121 is an apocalyptic number.

1212024121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1212024121 is a deficient number, since it is larger than the sum of its proper divisors (302717639).

1212024121 is a wasteful number, since it uses less digits than its factorization.

1212024121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38004.

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

The square root of 1212024121 is about 34814.1367981457. The cubic root of 1212024121 is about 1066.1960952432.

Adding to 1212024121 its reverse (1214202121), we get a palindrome (2426226242).

The spelling of 1212024121 in words is "one billion, two hundred twelve million, twenty-four thousand, one hundred twenty-one".