201020101121001 has 16 divisors (see below), whose sum is σ = 277996222277568. Its totient is φ = 129100412808000.

The previous prime is 201020101120991. The next prime is 201020101121003. The reversal of 201020101121001 is 100121101020102.

It is not a de Polignac number, because 201020101121001 - 2⁷ = 201020101120873 is a prime.

It is not an unprimeable number, because it can be changed into a prime (201020101121003) 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, 8965295235 + ... + 8965317656.

It is an arithmetic number, because the mean of its divisors is an integer number (17374763892348).

Almost surely, 2^{201020101121001} is an apocalyptic number.

It is an amenable number.

201020101121001 is a deficient number, since it is larger than the sum of its proper divisors (76976121156567).

201020101121001 is a wasteful number, since it uses less digits than its factorization.

201020101121001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17930613032.

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

Adding to 201020101121001 its reverse (100121101020102), we get a palindrome (301141202141103).

It can be divided in two parts, 201020101 and 121001, that added together give a palindrome (201141102).

The spelling of 201020101121001 in words is "two hundred one trillion, twenty billion, one hundred one million, one hundred twenty-one thousand, one".