2001001222012 has 48 divisors (see below), whose sum is σ = 4047646190112. Its totient is φ = 857306142720.

The previous prime is 2001001222009. The next prime is 2001001222049. The reversal of 2001001222012 is 2102221001002.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a junction number, because it is equal to n+sod(n) for n = 2001001221983 and 2001001222001.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15439414 + ... + 15568477.

It is an arithmetic number, because the mean of its divisors is an integer number (84325962294).

Almost surely, 2^{2001001222012} is an apocalyptic number.

It is an amenable number.

2001001222012 is an abundant number, since it is smaller than the sum of its proper divisors (2046644968100).

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

2001001222012 is a wasteful number, since it uses less digits than its factorization.

2001001222012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31007998 (or 31007996 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 2001001222012 its reverse (2102221001002), we get a palindrome (4103222223014).

The spelling of 2001001222012 in words is "two trillion, one billion, one million, two hundred twenty-two thousand, twelve".