12211000122212 has 12 divisors (see below), whose sum is σ = 22626264932460. Its totient is φ = 5746352998656.

The previous prime is 12211000122163. The next prime is 12211000122271. The reversal of 12211000122212 is 21222100011221.

It can be written as a sum of positive squares in 2 ways, for example, as 7691226169636 + 4519773952576 = 2773306^2 + 2125976^2 .

It is a super-2 number, since 2×12211000122212² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 89786765537 + ... + 89786765672.

It is an arithmetic number, because the mean of its divisors is an integer number (1885522077705).

Almost surely, 2^{12211000122212} is an apocalyptic number.

It is an amenable number.

12211000122212 is a deficient number, since it is larger than the sum of its proper divisors (10415264810248).

12211000122212 is a wasteful number, since it uses less digits than its factorization.

12211000122212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179573531230 (or 179573531228 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 12211000122212 its reverse (21222100011221), we get a palindrome (33433100133433).

The spelling of 12211000122212 in words is "twelve trillion, two hundred eleven billion, one hundred twenty-two thousand, two hundred twelve".