1211111322202 has 16 divisors (see below), whose sum is σ = 1831207896000. Its totient is φ = 600723224928.

The previous prime is 1211111322167. The next prime is 1211111322209. The reversal of 1211111322202 is 2022231111121.

It is a self number, because there is not a number n which added to its sum of digits gives 1211111322202.

It is not an unprimeable number, because it can be changed into a prime (1211111322209) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 3466683 + ... + 3800014.

It is an arithmetic number, because the mean of its divisors is an integer number (114450493500).

Almost surely, 2^{1211111322202} is an apocalyptic number.

1211111322202 is a deficient number, since it is larger than the sum of its proper divisors (620096573798).

1211111322202 is a wasteful number, since it uses less digits than its factorization.

1211111322202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7267365.

The product of its (nonzero) digits is 96, while the sum is 19.

Adding to 1211111322202 its reverse (2022231111121), we get a palindrome (3233342433323).

The spelling of 1211111322202 in words is "one trillion, two hundred eleven billion, one hundred eleven million, three hundred twenty-two thousand, two hundred two".