11222001212 has 48 divisors (see below), whose sum is σ = 20208539232. Its totient is φ = 5451079680.

The previous prime is 11222001199. The next prime is 11222001221. The reversal of 11222001212 is 21210022211.

It is a super-2 number, since 2×11222001212² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

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, 6029162 + ... + 6031022.

It is an arithmetic number, because the mean of its divisors is an integer number (421011234).

Almost surely, 2^11222001212 is an apocalyptic number.

It is an amenable number.

11222001212 is a deficient number, since it is larger than the sum of its proper divisors (8986538020).

11222001212 is a wasteful number, since it uses less digits than its factorization.

11222001212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2238 (or 2236 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 11222001212 its reverse (21210022211), we get a palindrome (32432023423).

The spelling of 11222001212 in words is "eleven billion, two hundred twenty-two million, one thousand, two hundred twelve".