22222211102212 has 24 divisors (see below), whose sum is σ = 42424402890240. Its totient is φ = 10100961785760.

The previous prime is 22222211102191. The next prime is 22222211102213. The reversal of 22222211102212 is 21220111222222.

It is a super-2 number, since 2×22222211102212² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is not an unprimeable number, because it can be changed into a prime (22222211102213) 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, 10767453 + ... + 12664219.

It is an arithmetic number, because the mean of its divisors is an integer number (1767683453760).

Almost surely, 2^{22222211102212} is an apocalyptic number.

22222211102212 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

22222211102212 is a deficient number, since it is larger than the sum of its proper divisors (20202191788028).

22222211102212 is a wasteful number, since it uses less digits than its factorization.

22222211102212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2163051 (or 2163049 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 22.

Adding to 22222211102212 its reverse (21220111222222), we get a palindrome (43442322324434).

The spelling of 22222211102212 in words is "twenty-two trillion, two hundred twenty-two billion, two hundred eleven million, one hundred two thousand, two hundred twelve".