11531400222 has 16 divisors (see below), whose sum is σ = 23101181712. Its totient is φ = 3837403200.

The previous prime is 11531400211. The next prime is 11531400263. The reversal of 11531400222 is 22200413511.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1595313 + ... + 1602524.

It is an arithmetic number, because the mean of its divisors is an integer number (1443823857).

Almost surely, 2^11531400222 is an apocalyptic number.

11531400222 is an abundant number, since it is smaller than the sum of its proper divisors (11569781490).

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

11531400222 is a wasteful number, since it uses less digits than its factorization.

11531400222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3198443.

The product of its (nonzero) digits is 480, while the sum is 21.

Adding to 11531400222 its reverse (22200413511), we get a palindrome (33731813733).

The spelling of 11531400222 in words is "eleven billion, five hundred thirty-one million, four hundred thousand, two hundred twenty-two".