11111421202 has 32 divisors (see below), whose sum is σ = 20063923200. Its totient is φ = 4608414720.

The previous prime is 11111421157. The next prime is 11111421203. The reversal of 11111421202 is 20212411111.

It is a super-2 number, since 2×11111421202² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11111421203) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 239983 + ... + 282514.

It is an arithmetic number, because the mean of its divisors is an integer number (626997600).

Almost surely, 2^11111421202 is an apocalyptic number.

11111421202 is a deficient number, since it is larger than the sum of its proper divisors (8952501998).

11111421202 is an equidigital number, since it uses as much as digits as its factorization.

11111421202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 522551 (or 522537 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 11111421202 its reverse (20212411111), we get a palindrome (31323832313).

The spelling of 11111421202 in words is "eleven billion, one hundred eleven million, four hundred twenty-one thousand, two hundred two".