2001000022212 has 12 divisors (see below), whose sum is σ = 4669000051856. Its totient is φ = 667000007400.

The previous prime is 2001000022211. The next prime is 2001000022247. The reversal of 2001000022212 is 2122200001002.

It is a tau number, because it is divible by the number of its divisors (12).

It is a Harshad number since it is a multiple of its sum of digits (12), and also a Moran number because the ratio is a prime number: 166750001851 = 2001000022212 / (2 + 0 + 0 + 1 + 0 + 0 + 0 + 0 + 2 + 2 + 2 + 1 + 2).

It is not an unprimeable number, because it can be changed into a prime (2001000022211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 83375000914 + ... + 83375000937.

Almost surely, 2^{2001000022212} is an apocalyptic number.

It is an amenable number.

2001000022212 is an abundant number, since it is smaller than the sum of its proper divisors (2668000029644).

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

2001000022212 is a wasteful number, since it uses less digits than its factorization.

2001000022212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166750001858 (or 166750001856 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 2001000022212 its reverse (2122200001002), we get a palindrome (4123200023214).

The spelling of 2001000022212 in words is "two trillion, one billion, twenty-two thousand, two hundred twelve".