101001001211 has 16 divisors (see below), whose sum is σ = 116220284160. Its totient is φ = 86807803680.

The previous prime is 101001001201. The next prime is 101001001219. The reversal of 101001001211 is 112100100101.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 101001001211 - 2¹⁰ = 101001000187 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (101001001219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 394376 + ... + 597941.

It is an arithmetic number, because the mean of its divisors is an integer number (7263767760).

Almost surely, 2^101001001211 is an apocalyptic number.

101001001211 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

101001001211 is a deficient number, since it is larger than the sum of its proper divisors (15219282949).

101001001211 is a wasteful number, since it uses less digits than its factorization.

101001001211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 992834.

The product of its (nonzero) digits is 2, while the sum is 8.

Adding to 101001001211 its reverse (112100100101), we get a palindrome (213101101312).

The spelling of 101001001211 in words is "one hundred one billion, one million, one thousand, two hundred eleven".