2001012222102 has 16 divisors (see below), whose sum is σ = 4019500536240. Its totient is φ = 664091392032.

The previous prime is 2001012222101. The next prime is 2001012222107. The reversal of 2001012222102 is 2012222101002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2001012222101) 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 7 ways as a sum of consecutive naturals, for example, 728169013 + ... + 728171760.

It is an arithmetic number, because the mean of its divisors is an integer number (251218783515).

Almost surely, 2^{2001012222102} is an apocalyptic number.

2001012222102 is an abundant number, since it is smaller than the sum of its proper divisors (2018488314138).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2001012222102 is a wasteful number, since it uses less digits than its factorization.

2001012222102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1456341007.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 2001012222102 its reverse (2012222101002), we get a palindrome (4013234323104).

The spelling of 2001012222102 in words is "two trillion, one billion, twelve million, two hundred twenty-two thousand, one hundred two".