11111221012202 has 16 divisors (see below), whose sum is σ = 16687632794112. Its totient is φ = 5548677897840.

The previous prime is 11111221012201. The next prime is 11111221012207. The reversal of 11111221012202 is 20221012211111.

It is not an unprimeable number, because it can be changed into a prime (11111221012201) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 19458827 + ... + 20021697.

It is an arithmetic number, because the mean of its divisors is an integer number (1042977049632).

Almost surely, 2^{11111221012202} is an apocalyptic number.

11111221012202 is a deficient number, since it is larger than the sum of its proper divisors (5576411781910).

11111221012202 is a wasteful number, since it uses less digits than its factorization.

11111221012202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 575173.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 11111221012202 its reverse (20221012211111), we get a palindrome (31332233223313).

The spelling of 11111221012202 in words is "eleven trillion, one hundred eleven billion, two hundred twenty-one million, twelve thousand, two hundred two".