22222212100222 has 64 divisors (see below), whose sum is σ = 35953034745600. Its totient is φ = 10270081704960.

The previous prime is 22222212100213. The next prime is 22222212100229. The reversal of 22222212100222 is 22200121222222.

It is a junction number, because it is equal to n+sod(n) for n = 22222212100193 and 22222212100202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22222212100229) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 148914798 + ... + 149063950.

It is an arithmetic number, because the mean of its divisors is an integer number (561766167900).

Almost surely, 2^{22222212100222} is an apocalyptic number.

22222212100222 is a deficient number, since it is larger than the sum of its proper divisors (13730822645378).

22222212100222 is a wasteful number, since it uses less digits than its factorization.

22222212100222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149801.

The product of its (nonzero) digits is 1024, while the sum is 22.

Adding to 22222212100222 its reverse (22200121222222), we get a palindrome (44422333322444).

The spelling of 22222212100222 in words is "twenty-two trillion, two hundred twenty-two billion, two hundred twelve million, one hundred thousand, two hundred twenty-two".