1212125041 has 4 divisors (see below), whose sum is σ = 1283426532. Its totient is φ = 1140823552.

The previous prime is 1212125027. The next prime is 1212125059. The reversal of 1212125041 is 1405212121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1405212121 = 2269 ⋅619309.

It can be written as a sum of positive squares in 2 ways, for example, as 400160016 + 811965025 = 20004^2 + 28495^2 .

It is a cyclic number.

It is not a de Polignac number, because 1212125041 - 2⁷ = 1212124913 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1212125011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35650720 + ... + 35650753.

It is an arithmetic number, because the mean of its divisors is an integer number (320856633).

Almost surely, 2^1212125041 is an apocalyptic number.

It is an amenable number.

1212125041 is a deficient number, since it is larger than the sum of its proper divisors (71301491).

1212125041 is an equidigital number, since it uses as much as digits as its factorization.

1212125041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71301490.

The product of its (nonzero) digits is 160, while the sum is 19.

The square root of 1212125041 is about 34815.5861791813. The cubic root of 1212125041 is about 1066.2256869325.

Adding to 1212125041 its reverse (1405212121), we get a palindrome (2617337162).

It can be divided in two parts, 121212 and 5041, that added together give a triangular number (126253 = T₅₀₂).

The spelling of 1212125041 in words is "one billion, two hundred twelve million, one hundred twenty-five thousand, forty-one".