22011222201212 has 12 divisors (see below), whose sum is σ = 38630010312600. Its totient is φ = 10974076397616.

The previous prime is 22011222201211. The next prime is 22011222201223. The reversal of 22011222201212 is 21210222211022.

It is a super-2 number, since 2×22011222201212² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22011222201211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7883674178 + ... + 7883676969.

It is an arithmetic number, because the mean of its divisors is an integer number (3219167526050).

Almost surely, 2^{22011222201212} is an apocalyptic number.

It is an amenable number.

22011222201212 is a deficient number, since it is larger than the sum of its proper divisors (16618788111388).

22011222201212 is a wasteful number, since it uses less digits than its factorization.

22011222201212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15767351500 (or 15767351498 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 22011222201212 its reverse (21210222211022), we get a palindrome (43221444412234).

The spelling of 22011222201212 in words is "twenty-two trillion, eleven billion, two hundred twenty-two million, two hundred one thousand, two hundred twelve".