1212241125 has 16 divisors (see below), whose sum is σ = 2017169856. Its totient is φ = 646528400.

The previous prime is 1212241123. The next prime is 1212241127. The reversal of 1212241125 is 5211422121.

It is an interprime number because it is at equal distance from previous prime (1212241123) and next prime (1212241127).

It is not a de Polignac number, because 1212241125 - 2¹ = 1212241123 is a prime.

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 15 ways as a sum of consecutive naturals, for example, 1615947 + ... + 1616696.

It is an arithmetic number, because the mean of its divisors is an integer number (126073116).

Almost surely, 2^1212241125 is an apocalyptic number.

1212241125 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1212241125 is a deficient number, since it is larger than the sum of its proper divisors (804928731).

1212241125 is an equidigital number, since it uses as much as digits as its factorization.

1212241125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3232661 (or 3232651 counting only the distinct ones).

The product of its digits is 320, while the sum is 21.

The square root of 1212241125 is about 34817.2532661610. The cubic root of 1212241125 is about 1066.2597229677.

Adding to 1212241125 its reverse (5211422121), we get a palindrome (6423663246).

The spelling of 1212241125 in words is "one billion, two hundred twelve million, two hundred forty-one thousand, one hundred twenty-five".