201010011221001 has 128 divisors (see below), whose sum is σ = 285076682827776. Its totient is φ = 125823590092800.

The previous prime is 201010011220981. The next prime is 201010011221009. The reversal of 201010011221001 is 100122110010102.

It is not a de Polignac number, because 201010011221001 - 2⁷ = 201010011220873 is a prime.

It is a super-2 number, since 2×201010011221001² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (201010011221009) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 252208294735 + ... + 252208295531.

It is an arithmetic number, because the mean of its divisors is an integer number (2227161584592).

Almost surely, 2^{201010011221001} is an apocalyptic number.

It is an amenable number.

201010011221001 is a deficient number, since it is larger than the sum of its proper divisors (84066671606775).

201010011221001 is a wasteful number, since it uses less digits than its factorization.

201010011221001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2371.

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

Adding to 201010011221001 its reverse (100122110010102), we get a palindrome (301132121231103).

The spelling of 201010011221001 in words is "two hundred one trillion, ten billion, eleven million, two hundred twenty-one thousand, one".