22211120212 has 6 divisors (see below), whose sum is σ = 38869460378. Its totient is φ = 11105560104.

The previous prime is 22211120201. The next prime is 22211120221. The reversal of 22211120212 is 21202111222.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 21306073156 + 905047056 = 145966^2 + 30084^2 .

It is a super-2 number, since 2×22211120212² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2776390023 + ... + 2776390030.

Almost surely, 2^22211120212 is an apocalyptic number.

It is an amenable number.

22211120212 is a deficient number, since it is larger than the sum of its proper divisors (16658340166).

22211120212 is a wasteful number, since it uses less digits than its factorization.

22211120212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5552780057 (or 5552780055 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 22211120212 its reverse (21202111222), we get a palindrome (43413231434).

The spelling of 22211120212 in words is "twenty-two billion, two hundred eleven million, one hundred twenty thousand, two hundred twelve".