11212227570 has 32 divisors (see below), whose sum is σ = 26971523712. Its totient is φ = 2983018752.

The previous prime is 11212227563. The next prime is 11212227581. The reversal of 11212227570 is 7572221211.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 418582 + ... + 444561.

It is an arithmetic number, because the mean of its divisors is an integer number (842860116).

Almost surely, 2^11212227570 is an apocalyptic number.

11212227570 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11212227570 is an abundant number, since it is smaller than the sum of its proper divisors (15759296142).

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

11212227570 is a wasteful number, since it uses less digits than its factorization.

11212227570 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 863586.

The product of its (nonzero) digits is 3920, while the sum is 30.

Adding to 11212227570 its reverse (7572221211), we get a palindrome (18784448781).

The spelling of 11212227570 in words is "eleven billion, two hundred twelve million, two hundred twenty-seven thousand, five hundred seventy".