11221010212 has 6 divisors (see below), whose sum is σ = 19636767878. Its totient is φ = 5610505104.

The previous prime is 11221010209. The next prime is 11221010231. The reversal of 11221010212 is 21201012211.

It can be written as a sum of positive squares in only one way, i.e., 5918840356 + 5302169856 = 76934^2 + 72816^2 .

It is a super-2 number, since 2×11221010212² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11221010192 and 11221010201.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1402626273 + ... + 1402626280.

Almost surely, 2^11221010212 is an apocalyptic number.

It is an amenable number.

11221010212 is a deficient number, since it is larger than the sum of its proper divisors (8415757666).

11221010212 is a wasteful number, since it uses less digits than its factorization.

11221010212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2805252557 (or 2805252555 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 11221010212 its reverse (21201012211), we get a palindrome (32422022423).

The spelling of 11221010212 in words is "eleven billion, two hundred twenty-one million, ten thousand, two hundred twelve".