1211141001 has 32 divisors (see below), whose sum is σ = 1885794048. Its totient is φ = 677064960.

The previous prime is 1211140939. The next prime is 1211141011. The reversal of 1211141001 is 1001411121.

It is not a de Polignac number, because 1211141001 - 2⁶ = 1211140937 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1211141011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 440491 + ... + 443231.

It is an arithmetic number, because the mean of its divisors is an integer number (58931064).

Almost surely, 2^1211141001 is an apocalyptic number.

It is an amenable number.

1211141001 is a deficient number, since it is larger than the sum of its proper divisors (674653047).

1211141001 is a wasteful number, since it uses less digits than its factorization.

1211141001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3201.

The product of its (nonzero) digits is 8, while the sum is 12.

The square root of 1211141001 is about 34801.4511335375. The cubic root of 1211141001 is about 1065.9370773298.

Adding to 1211141001 its reverse (1001411121), we get a palindrome (2212552122).

The spelling of 1211141001 in words is "one billion, two hundred eleven million, one hundred forty-one thousand, one".