11222131550 has 48 divisors (see below), whose sum is σ = 23884438560. Its totient is φ = 3842847360.

The previous prime is 11222131541. The next prime is 11222131559. The reversal of 11222131550 is 5513122211.

11222131550 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (11222131541) and next prime (11222131559).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11222131559) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 270812 + ... + 309488.

It is an arithmetic number, because the mean of its divisors is an integer number (497592470).

Almost surely, 2^11222131550 is an apocalyptic number.

11222131550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11222131550 is an abundant number, since it is smaller than the sum of its proper divisors (12662307010).

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

11222131550 is a wasteful number, since it uses less digits than its factorization.

11222131550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39525 (or 39520 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 23.

Adding to 11222131550 its reverse (5513122211), we get a palindrome (16735253761).

The spelling of 11222131550 in words is "eleven billion, two hundred twenty-two million, one hundred thirty-one thousand, five hundred fifty".