2001200021222 has 8 divisors (see below), whose sum is σ = 3002907306672. Its totient is φ = 1000230919000.

The previous prime is 2001200021209. The next prime is 2001200021243. The reversal of 2001200021222 is 2221200021002.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 2001200021197 and 2001200021206.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 184539029 + ... + 184549872.

It is an arithmetic number, because the mean of its divisors is an integer number (375363413334).

Almost surely, 2^{2001200021222} is an apocalyptic number.

2001200021222 is a deficient number, since it is larger than the sum of its proper divisors (1001707285450).

2001200021222 is a wasteful number, since it uses less digits than its factorization.

2001200021222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 369091614.

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 2001200021222 its reverse (2221200021002), we get a palindrome (4222400042224).

The spelling of 2001200021222 in words is "two trillion, one billion, two hundred million, twenty-one thousand, two hundred twenty-two".