11621212204 has 36 divisors (see below), whose sum is σ = 23663627064. Its totient is φ = 4979222976.

The previous prime is 11621212181. The next prime is 11621212217. The reversal of 11621212204 is 40221212611.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1405707 + ... + 1413949.

It is an arithmetic number, because the mean of its divisors is an integer number (657322974).

Almost surely, 2^11621212204 is an apocalyptic number.

11621212204 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

11621212204 is an abundant number, since it is smaller than the sum of its proper divisors (12042414860).

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

11621212204 is a wasteful number, since it uses less digits than its factorization.

11621212204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15454 (or 15445 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 22.

Adding to 11621212204 its reverse (40221212611), we get a palindrome (51842424815).

The spelling of 11621212204 in words is "eleven billion, six hundred twenty-one million, two hundred twelve thousand, two hundred four".