2001001201022 has 16 divisors (see below), whose sum is σ = 3074774641344. Its totient is φ = 976077360000.

The previous prime is 2001001201007. The next prime is 2001001201027. The reversal of 2001001201022 is 2201021001002.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 2001001200994 and 2001001201012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2001001201027) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4046747 + ... + 4514217.

It is an arithmetic number, because the mean of its divisors is an integer number (192173415084).

Almost surely, 2^{2001001201022} is an apocalyptic number.

2001001201022 is a deficient number, since it is larger than the sum of its proper divisors (1073773440322).

2001001201022 is a wasteful number, since it uses less digits than its factorization.

2001001201022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 519715.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 2001001201022 its reverse (2201021001002), we get a palindrome (4202022202024).

The spelling of 2001001201022 in words is "two trillion, one billion, one million, two hundred one thousand, twenty-two".