11222210021212 has 6 divisors (see below), whose sum is σ = 19638867537128. Its totient is φ = 5611105010604.

The previous prime is 11222210021203. The next prime is 11222210021219. The reversal of 11222210021212 is 21212001222211.

It is a self number, because there is not a number n which added to its sum of digits gives 11222210021212.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11222210021219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1402776252648 + ... + 1402776252655.

Almost surely, 2^{11222210021212} is an apocalyptic number.

It is an amenable number.

11222210021212 is a deficient number, since it is larger than the sum of its proper divisors (8416657515916).

11222210021212 is a wasteful number, since it uses less digits than its factorization.

11222210021212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2805552505307 (or 2805552505305 counting only the distinct ones).

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

Adding to 11222210021212 its reverse (21212001222211), we get a palindrome (32434211243423).

The spelling of 11222210021212 in words is "eleven trillion, two hundred twenty-two billion, two hundred ten million, twenty-one thousand, two hundred twelve".