2121002012222 has 8 divisors (see below), whose sum is σ = 3214302018816. Its totient is φ = 1049568005952.

The previous prime is 2121002012197. The next prime is 2121002012243. The reversal of 2121002012222 is 2222102001212.

It is a happy number.

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

It is a self number, because there is not a number n which added to its sum of digits gives 2121002012222.

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, 5466499838 + ... + 5466500225.

It is an arithmetic number, because the mean of its divisors is an integer number (401787752352).

Almost surely, 2^{2121002012222} is an apocalyptic number.

2121002012222 is a deficient number, since it is larger than the sum of its proper divisors (1093300006594).

2121002012222 is a wasteful number, since it uses less digits than its factorization.

2121002012222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10933000162.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 2121002012222 its reverse (2222102001212), we get a palindrome (4343104013434).

The spelling of 2121002012222 in words is "two trillion, one hundred twenty-one billion, two million, twelve thousand, two hundred twenty-two".