11212231670 has 16 divisors (see below), whose sum is σ = 20190936960. Its totient is φ = 4482910464.

The previous prime is 11212231651. The next prime is 11212231711. The reversal of 11212231670 is 7613221211.

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, 223910 + ... + 269369.

It is an arithmetic number, because the mean of its divisors is an integer number (1261933560).

Almost surely, 2^11212231670 is an apocalyptic number.

11212231670 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11212231670 is a deficient number, since it is larger than the sum of its proper divisors (8978705290).

11212231670 is a wasteful number, since it uses less digits than its factorization.

11212231670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 495559.

The product of its (nonzero) digits is 1008, while the sum is 26.

Adding to 11212231670 its reverse (7613221211), we get a palindrome (18825452881).

The spelling of 11212231670 in words is "eleven billion, two hundred twelve million, two hundred thirty-one thousand, six hundred seventy".