201001022121011 has 96 divisors (see below), whose sum is σ = 245276726849280. Its totient is φ = 164097093888000.

The previous prime is 201001022121007. The next prime is 201001022121013. The reversal of 201001022121011 is 110121220100102.

It is not a de Polignac number, because 201001022121011 - 2² = 201001022121007 is a prime.

It is a super-2 number, since 2×201001022121011² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (201001022121013) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 12775751501 + ... + 12775767233.

It is an arithmetic number, because the mean of its divisors is an integer number (2554965904680).

Almost surely, 2^{201001022121011} is an apocalyptic number.

201001022121011 is a deficient number, since it is larger than the sum of its proper divisors (44275704728269).

201001022121011 is a wasteful number, since it uses less digits than its factorization.

201001022121011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16765 (or 16758 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 201001022121011 its reverse (110121220100102), we get a palindrome (311122242221113).

The spelling of 201001022121011 in words is "two hundred one trillion, one billion, twenty-two million, one hundred twenty-one thousand, eleven".