201001211001011 has 4 divisors (see below), whose sum is σ = 201041339017800. Its totient is φ = 200961082984224.

The previous prime is 201001211001007. The next prime is 201001211001037. The reversal of 201001211001011 is 110100112100102.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 201001211001011 - 2² = 201001211001007 is a prime.

It is a super-3 number, since 3×201001211001011³ (a number of 44 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 201001211000983 and 201001211001001.

It is not an unprimeable number, because it can be changed into a prime (201001211001211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20064000881 + ... + 20064010898.

It is an arithmetic number, because the mean of its divisors is an integer number (50260334754450).

Almost surely, 2^{201001211001011} is an apocalyptic number.

201001211001011 is a deficient number, since it is larger than the sum of its proper divisors (40128016789).

201001211001011 is an equidigital number, since it uses as much as digits as its factorization.

201001211001011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40128016788.

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 201001211001011 its reverse (110100112100102), we get a palindrome (311101323101113).

The spelling of 201001211001011 in words is "two hundred one trillion, one billion, two hundred eleven million, one thousand, eleven".