2211201012222 has 64 divisors (see below), whose sum is σ = 5113275552000. Its totient is φ = 707723733024.

The previous prime is 2211201012161. The next prime is 2211201012239. The reversal of 2211201012222 is 2222101021122.

It is a happy number.

2211201012222 is a `hidden beast` number, since 221 + 120 + 101 + 2 + 222 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 2211201012195 and 2211201012204.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7933197 + ... + 8207192.

It is an arithmetic number, because the mean of its divisors is an integer number (79894930500).

Almost surely, 2^{2211201012222} is an apocalyptic number.

2211201012222 is an abundant number, since it is smaller than the sum of its proper divisors (2902074539778).

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

2211201012222 is a wasteful number, since it uses less digits than its factorization.

2211201012222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16140502 (or 16140496 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 2211201012222 its reverse (2222101021122), we get a palindrome (4433302033344).

The spelling of 2211201012222 in words is "two trillion, two hundred eleven billion, two hundred one million, twelve thousand, two hundred twenty-two".