2211201212222 has 8 divisors (see below), whose sum is σ = 3423795425472. Its totient is φ = 1069936070400.

The previous prime is 2211201212179. The next prime is 2211201212237. The reversal of 2211201212222 is 2222121021122.

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 = 2211201212194 and 2211201212203.

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, 17832267779 + ... + 17832267902.

It is an arithmetic number, because the mean of its divisors is an integer number (427974428184).

Almost surely, 2^{2211201212222} is an apocalyptic number.

2211201212222 is a deficient number, since it is larger than the sum of its proper divisors (1212594213250).

2211201212222 is a wasteful number, since it uses less digits than its factorization.

2211201212222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35664535714.

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 2211201212222 its reverse (2222121021122), we get a palindrome (4433322233344).

The spelling of 2211201212222 in words is "two trillion, two hundred eleven billion, two hundred one million, two hundred twelve thousand, two hundred twenty-two".