1212243241 has 8 divisors (see below), whose sum is σ = 1336081824. Its totient is φ = 1090677120.

The previous prime is 1212243233. The next prime is 1212243271. The reversal of 1212243241 is 1423422121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1212243241 - 2³ = 1212243233 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1212243211) 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, 566995 + ... + 569128.

It is an arithmetic number, because the mean of its divisors is an integer number (167010228).

Almost surely, 2^1212243241 is an apocalyptic number.

1212243241 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1212243241 is a deficient number, since it is larger than the sum of its proper divisors (123838583).

1212243241 is a wasteful number, since it uses less digits than its factorization.

1212243241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1136231.

The product of its digits is 768, while the sum is 22.

The square root of 1212243241 is about 34817.2836533811. The cubic root of 1212243241 is about 1066.2603433625.

Adding to 1212243241 its reverse (1423422121), we get a palindrome (2635665362).

The spelling of 1212243241 in words is "one billion, two hundred twelve million, two hundred forty-three thousand, two hundred forty-one".