201011222001 has 16 divisors (see below), whose sum is σ = 270236317824. Its totient is φ = 132901152384.

The previous prime is 201011221991. The next prime is 201011222023. The reversal of 201011222001 is 100222110102.

It is not a de Polignac number, because 201011222001 - 2⁵ = 201011221969 is a prime.

It is a super-2 number, since 2×201011222001² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (201211222001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 358341 + ... + 728306.

It is an arithmetic number, because the mean of its divisors is an integer number (16889769864).

Almost surely, 2^201011222001 is an apocalyptic number.

It is an amenable number.

201011222001 is a deficient number, since it is larger than the sum of its proper divisors (69225095823).

201011222001 is a wasteful number, since it uses less digits than its factorization.

201011222001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1087160.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 201011222001 its reverse (100222110102), we get a palindrome (301233332103).

The spelling of 201011222001 in words is "two hundred one billion, eleven million, two hundred twenty-two thousand, one".