11220022212 has 48 divisors (see below), whose sum is σ = 30427192320. Its totient is φ = 3151384992.

The previous prime is 11220022201. The next prime is 11220022237. The reversal of 11220022212 is 21222002211.

It is a junction number, because it is equal to n+sod(n) for n = 11220022191 and 11220022200.

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, 1127008 + ... + 1136919.

It is an arithmetic number, because the mean of its divisors is an integer number (633899840).

Almost surely, 2^11220022212 is an apocalyptic number.

11220022212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11220022212 is an abundant number, since it is smaller than the sum of its proper divisors (19207170108).

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

11220022212 is a wasteful number, since it uses less digits than its factorization.

11220022212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2264000 (or 2263998 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 11220022212 its reverse (21222002211), we get a palindrome (32442024423).

The spelling of 11220022212 in words is "eleven billion, two hundred twenty million, twenty-two thousand, two hundred twelve".