11222221010212 has 6 divisors (see below), whose sum is σ = 19638886767878. Its totient is φ = 5611110505104.

The previous prime is 11222221010173. The next prime is 11222221010251. The reversal of 11222221010212 is 21201012222211.

It is an interprime number because it is at equal distance from previous prime (11222221010173) and next prime (11222221010251).

It can be written as a sum of positive squares in only one way, i.e., 10665815412736 + 556405597476 = 3265856^2 + 745926^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 11222221010212.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1402777626273 + ... + 1402777626280.

Almost surely, 2^{11222221010212} is an apocalyptic number.

It is an amenable number.

11222221010212 is a deficient number, since it is larger than the sum of its proper divisors (8416665757666).

11222221010212 is a wasteful number, since it uses less digits than its factorization.

11222221010212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2805555252557 (or 2805555252555 counting only the distinct ones).

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

Adding to 11222221010212 its reverse (21201012222211), we get a palindrome (32423233232423).

The spelling of 11222221010212 in words is "eleven trillion, two hundred twenty-two billion, two hundred twenty-one million, ten thousand, two hundred twelve".