11222021122212 has 24 divisors (see below), whose sum is σ = 26373095207200. Its totient is φ = 3713762385216.

The previous prime is 11222021122211. The next prime is 11222021122237. The reversal of 11222021122212 is 21222112022211.

It is not an unprimeable number, because it can be changed into a prime (11222021122211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3363913537 + ... + 3363916872.

Almost surely, 2^{11222021122212} is an apocalyptic number.

11222021122212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11222021122212 is an abundant number, since it is smaller than the sum of its proper divisors (15151074084988).

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

11222021122212 is a wasteful number, since it uses less digits than its factorization.

11222021122212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6727830555 (or 6727830553 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 21.

Adding to 11222021122212 its reverse (21222112022211), we get a palindrome (32444133144423).

The spelling of 11222021122212 in words is "eleven trillion, two hundred twenty-two billion, twenty-one million, one hundred twenty-two thousand, two hundred twelve".