211222101102212 has 24 divisors (see below), whose sum is σ = 371151516099672. Its totient is φ = 105179690220800.

The previous prime is 211222101102211. The next prime is 211222101102241. The reversal of 211222101102212 is 212201101222112.

It can be written as a sum of positive squares in 4 ways, for example, as 57240209907076 + 153981891195136 = 7565726^2 + 12408944^2 .

It is a super-2 number, since 2×211222101102212² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (211222101102211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 108967883 + ... + 110889330.

It is an arithmetic number, because the mean of its divisors is an integer number (15464646504153).

Almost surely, 2^{211222101102212} is an apocalyptic number.

It is an amenable number.

211222101102212 is a deficient number, since it is larger than the sum of its proper divisors (159929414997460).

211222101102212 is a wasteful number, since it uses less digits than its factorization.

211222101102212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 219858199 (or 219858197 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 211222101102212 its reverse (212201101222112), we get a palindrome (423423202324324).

The spelling of 211222101102212 in words is "two hundred eleven trillion, two hundred twenty-two billion, one hundred one million, one hundred two thousand, two hundred twelve".