11220131662 has 4 divisors (see below), whose sum is σ = 16830197496. Its totient is φ = 5610065830.

The previous prime is 11220131519. The next prime is 11220131687. The reversal of 11220131662 is 26613102211.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×11220131662² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

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 as a sum of consecutive naturals, namely, 2805032914 + ... + 2805032917.

It is an arithmetic number, because the mean of its divisors is an integer number (4207549374).

Almost surely, 2^11220131662 is an apocalyptic number.

11220131662 is a deficient number, since it is larger than the sum of its proper divisors (5610065834).

11220131662 is an equidigital number, since it uses as much as digits as its factorization.

11220131662 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5610065833.

The product of its (nonzero) digits is 864, while the sum is 25.

Adding to 11220131662 its reverse (26613102211), we get a palindrome (37833233873).

The spelling of 11220131662 in words is "eleven billion, two hundred twenty million, one hundred thirty-one thousand, six hundred sixty-two".