2001210001022 has 16 divisors (see below), whose sum is σ = 3009278822400. Its totient is φ = 998119872600.

The previous prime is 2001210001009. The next prime is 2001210001039. The reversal of 2001210001022 is 2201000121002.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 2001210000994 and 2001210001012.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 722729 + ... + 2127147.

It is an arithmetic number, because the mean of its divisors is an integer number (188079926400).

Almost surely, 2^{2001210001022} is an apocalyptic number.

2001210001022 is a deficient number, since it is larger than the sum of its proper divisors (1008068821378).

2001210001022 is a wasteful number, since it uses less digits than its factorization.

2001210001022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1406191.

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

Adding to 2001210001022 its reverse (2201000121002), we get a palindrome (4202210122024).

The spelling of 2001210001022 in words is "two trillion, one billion, two hundred ten million, one thousand, twenty-two".