2211211221202 has 128 divisors (see below), whose sum is σ = 3818155622400. Its totient is φ = 954021888000.

The previous prime is 2211211221157. The next prime is 2211211221251. The reversal of 2211211221202 is 2021221121122.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a self number, because there is not a number n which added to its sum of digits gives 2211211221202.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1728858799 + ... + 1728860077.

It is an arithmetic number, because the mean of its divisors is an integer number (29829340800).

Almost surely, 2^{2211211221202} is an apocalyptic number.

2211211221202 is a deficient number, since it is larger than the sum of its proper divisors (1606944401198).

2211211221202 is a wasteful number, since it uses less digits than its factorization.

2211211221202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2052.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 2211211221202 its reverse (2021221121122), we get a palindrome (4232432342324).

The spelling of 2211211221202 in words is "two trillion, two hundred eleven billion, two hundred eleven million, two hundred twenty-one thousand, two hundred two".