2211201221202 has 64 divisors (see below), whose sum is σ = 5042062080000. Its totient is φ = 717920343504.

The previous prime is 2211201221189. The next prime is 2211201221231. The reversal of 2211201221202 is 2021221021122.

It is a happy number.

2211201221202 is a `hidden beast` number, since 221 + 1 + 20 + 1 + 221 + 202 = 666.

It is a super-2 number, since 2×2211201221202² (a number of 25 digits) contains 22 as substring.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 492702 + ... + 2159897.

It is an arithmetic number, because the mean of its divisors is an integer number (78782220000).

Almost surely, 2^{2211201221202} is an apocalyptic number.

2211201221202 is an abundant number, since it is smaller than the sum of its proper divisors (2830860858798).

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

2211201221202 is a wasteful number, since it uses less digits than its factorization.

2211201221202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2653012 (or 2653006 counting only the distinct ones).

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

Adding to 2211201221202 its reverse (2021221021122), we get a palindrome (4232422242324).

The spelling of 2211201221202 in words is "two trillion, two hundred eleven billion, two hundred one million, two hundred twenty-one thousand, two hundred two".