201001344121 has 16 divisors (see below), whose sum is σ = 207049457664. Its totient is φ = 195033244624.

The previous prime is 201001344119. The next prime is 201001344127. The reversal of 201001344121 is 121443100102.

It is a cyclic number.

It is not a de Polignac number, because 201001344121 - 2¹ = 201001344119 is a prime.

It is a super-2 number, since 2×201001344121² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201001344127) 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, 2972736 + ... + 3039598.

It is an arithmetic number, because the mean of its divisors is an integer number (12940591104).

Almost surely, 2^201001344121 is an apocalyptic number.

It is an amenable number.

201001344121 is a deficient number, since it is larger than the sum of its proper divisors (6048113543).

201001344121 is a wasteful number, since it uses less digits than its factorization.

201001344121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67460.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 201001344121 its reverse (121443100102), we get a palindrome (322444444223).

The spelling of 201001344121 in words is "two hundred one billion, one million, three hundred forty-four thousand, one hundred twenty-one".