22221111002222 has 16 divisors (see below), whose sum is σ = 36721836007344. Its totient is φ = 10000500000000.

The previous prime is 22221111002117. The next prime is 22221111002227. The reversal of 22221111002222 is 22220011112222.

It is a zygodrome in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 22221111002194 and 22221111002203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22221111002227) 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, 5000247779 + ... + 5000252222.

It is an arithmetic number, because the mean of its divisors is an integer number (2295114750459).

Almost surely, 2^{22221111002222} is an apocalyptic number.

22221111002222 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

22221111002222 is a deficient number, since it is larger than the sum of its proper divisors (14500725005122).

22221111002222 is a wasteful number, since it uses less digits than its factorization.

22221111002222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10000500115.

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

Adding to 22221111002222 its reverse (22220011112222), we get a palindrome (44441122114444).

The spelling of 22221111002222 in words is "twenty-two trillion, two hundred twenty-one billion, one hundred eleven million, two thousand, two hundred twenty-two".