11621621022222 has 16 divisors (see below), whose sum is σ = 23243628298320. Its totient is φ = 3873809298432.

The previous prime is 11621621022191. The next prime is 11621621022247. The reversal of 11621621022222 is 22222012612611.

It is a self number, because there is not a number n which added to its sum of digits gives 11621621022222.

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, 15702033 + ... + 16425500.

It is an arithmetic number, because the mean of its divisors is an integer number (1452726768645).

Almost surely, 2^{11621621022222} is an apocalyptic number.

11621621022222 is an abundant number, since it is smaller than the sum of its proper divisors (11622007276098).

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

11621621022222 is a wasteful number, since it uses less digits than its factorization.

11621621022222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32187827.

The product of its (nonzero) digits is 4608, while the sum is 30.

Adding to 11621621022222 its reverse (22222012612611), we get a palindrome (33843633634833).

The spelling of 11621621022222 in words is "eleven trillion, six hundred twenty-one billion, six hundred twenty-one million, twenty-two thousand, two hundred twenty-two".