11021222221012 has 48 divisors (see below), whose sum is σ = 20109877849600. Its totient is φ = 5279211780480.

The previous prime is 11021222220977. The next prime is 11021222221033. The reversal of 11021222221012 is 21012222212011.

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, 14815414 + ... + 15541522.

Almost surely, 2^{11021222221012} is an apocalyptic number.

It is an amenable number.

11021222221012 is a deficient number, since it is larger than the sum of its proper divisors (9088655628588).

11021222221012 is a wasteful number, since it uses less digits than its factorization.

11021222221012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 727376 (or 727374 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 11021222221012 its reverse (21012222212011), we get a palindrome (32033444433023).

Subtracting 11021222221012 from its reverse (21012222212011), we obtain a palindrome (9990999990999).

The spelling of 11021222221012 in words is "eleven trillion, twenty-one billion, two hundred twenty-two million, two hundred twenty-one thousand, twelve".