111221002012202 has 48 divisors (see below), whose sum is σ = 175220701173000. Its totient is φ = 52884852539904.

The previous prime is 111221002012163. The next prime is 111221002012213. The reversal of 111221002012202 is 202210200122111.

It can be written as a sum of positive squares in 4 ways, for example, as 96269084045761 + 14951917966441 = 9811681^2 + 3866771^2 .

It is a super-2 number, since 2×111221002012202² (a number of 29 digits) contains 22 as substring.

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 23 ways as a sum of consecutive naturals, for example, 2522625374 + ... + 2522669462.

Almost surely, 2^{111221002012202} is an apocalyptic number.

111221002012202 is a deficient number, since it is larger than the sum of its proper divisors (63999699160798).

111221002012202 is an equidigital number, since it uses as much as digits as its factorization.

111221002012202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53943 (or 53876 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 111221002012202 its reverse (202210200122111), we get a palindrome (313431202134313).

The spelling of 111221002012202 in words is "one hundred eleven trillion, two hundred twenty-one billion, two million, twelve thousand, two hundred two".