211222111020112 has 20 divisors (see below), whose sum is σ = 409245808255956. Its totient is φ = 105610289534720.

The previous prime is 211222111020091. The next prime is 211222111020113. The reversal of 211222111020112 is 211020111222112.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 43621745064976 + 167600365955136 = 6604676^2 + 12946056^2 .

It is a super-2 number, since 2×211222111020112² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 211222111020112.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211222111020113) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45595189 + ... + 50013652.

Almost surely, 2^{211222111020112} is an apocalyptic number.

It is an amenable number.

211222111020112 is a deficient number, since it is larger than the sum of its proper divisors (198023697235844).

211222111020112 is a wasteful number, since it uses less digits than its factorization.

211222111020112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95746926 (or 95746920 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 211222111020112 its reverse (211020111222112), we get a palindrome (422242222242224).

The spelling of 211222111020112 in words is "two hundred eleven trillion, two hundred twenty-two billion, one hundred eleven million, twenty thousand, one hundred twelve".