1241212211 has 8 divisors (see below), whose sum is σ = 1332229104. Its totient is φ = 1152195840.

The previous prime is 1241212199. The next prime is 1241212223. The reversal of 1241212211 is 1122121421.

It is an interprime number because it is at equal distance from previous prime (1241212199) and next prime (1241212223).

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1241212211 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1241212211.

It is not an unprimeable number, because it can be changed into a prime (1241212241) 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, 498845 + ... + 501326.

It is an arithmetic number, because the mean of its divisors is an integer number (166528638).

Almost surely, 2^1241212211 is an apocalyptic number.

1241212211 is a deficient number, since it is larger than the sum of its proper divisors (91016893).

1241212211 is a wasteful number, since it uses less digits than its factorization.

1241212211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1000261.

The product of its digits is 64, while the sum is 17.

The square root of 1241212211 is about 35230.8417583231. The cubic root of 1241212211 is about 1074.6870438563.

Adding to 1241212211 its reverse (1122121421), we get a palindrome (2363333632).

The spelling of 1241212211 in words is "one billion, two hundred forty-one million, two hundred twelve thousand, two hundred eleven".