11142222100 has 36 divisors (see below), whose sum is σ = 24268563900. Its totient is φ = 4440309760.

The previous prime is 11142222061. The next prime is 11142222101. The reversal of 11142222100 is 122224111.

It can be written as a sum of positive squares in 6 ways, for example, as 2452626576 + 8689595524 = 49524^2 + 93218^2 .

It is a super-2 number, since 2×11142222100² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11142222101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 180205 + ... + 234004.

It is an arithmetic number, because the mean of its divisors is an integer number (674126775).

Almost surely, 2^11142222100 is an apocalyptic number.

11142222100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11142222100 is an abundant number, since it is smaller than the sum of its proper divisors (13126341800).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11142222100 is a wasteful number, since it uses less digits than its factorization.

11142222100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 414492 (or 414485 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 11142222100 its reverse (122224111), we get a palindrome (11264446211).

The spelling of 11142222100 in words is "eleven billion, one hundred forty-two million, two hundred twenty-two thousand, one hundred".