201001232221031 has 32 divisors (see below), whose sum is σ = 228277922483520. Its totient is φ = 175307476377600.

The previous prime is 201001232221019. The next prime is 201001232221051. The reversal of 201001232221031 is 130122232100102.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-201001232221031 is a prime.

It is a super-2 number, since 2×201001232221031² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 201001232220994 and 201001232221012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201001232221051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 50602961 + ... + 54430341.

It is an arithmetic number, because the mean of its divisors is an integer number (7133685077610).

Almost surely, 2^{201001232221031} is an apocalyptic number.

201001232221031 is a deficient number, since it is larger than the sum of its proper divisors (27276690262489).

201001232221031 is a wasteful number, since it uses less digits than its factorization.

201001232221031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3828467.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 201001232221031 its reverse (130122232100102), we get a palindrome (331123464321133).

The spelling of 201001232221031 in words is "two hundred one trillion, one billion, two hundred thirty-two million, two hundred twenty-one thousand, thirty-one".