1211252841 has 12 divisors (see below), whose sum is σ = 1825656768. Its totient is φ = 772392984.

The previous prime is 1211252813. The next prime is 1211252851. The reversal of 1211252841 is 1482521121.

1211252841 is a `hidden beast` number, since 121 + 12 + 528 + 4 + 1 = 666.

It is not a de Polignac number, because 1211252841 - 2¹⁰ = 1211251817 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1211252851) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2925525 + ... + 2925938.

It is an arithmetic number, because the mean of its divisors is an integer number (152138064).

Almost surely, 2^1211252841 is an apocalyptic number.

It is an amenable number.

1211252841 is a deficient number, since it is larger than the sum of its proper divisors (614403927).

1211252841 is a wasteful number, since it uses less digits than its factorization.

1211252841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5851492 (or 5851489 counting only the distinct ones).

The product of its digits is 1280, while the sum is 27.

The square root of 1211252841 is about 34803.0579259927. The cubic root of 1211252841 is about 1065.9698868137.

Adding to 1211252841 its reverse (1482521121), we get a palindrome (2693773962).

The spelling of 1211252841 in words is "one billion, two hundred eleven million, two hundred fifty-two thousand, eight hundred forty-one".