201210011121001 has 16 divisors (see below), whose sum is σ = 213503485046400. Its totient is φ = 189236133505408.

The previous prime is 201210011120977. The next prime is 201210011121043. The reversal of 201210011121001 is 100121110012102.

It is a happy number.

It is not a de Polignac number, because 201210011121001 - 2²³ = 201210002732393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201210011121401) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 274200826 + ... + 274933651.

It is an arithmetic number, because the mean of its divisors is an integer number (13343967815400).

Almost surely, 2^{201210011121001} is an apocalyptic number.

It is an amenable number.

201210011121001 is a deficient number, since it is larger than the sum of its proper divisors (12293473925399).

201210011121001 is a wasteful number, since it uses less digits than its factorization.

201210011121001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 549134768.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 201210011121001 its reverse (100121110012102), we get a palindrome (301331121133103).

The spelling of 201210011121001 in words is "two hundred one trillion, two hundred ten billion, eleven million, one hundred twenty-one thousand, one".