22100222222 has 8 divisors (see below), whose sum is σ = 35700359016. Its totient is φ = 10200102552.

The previous prime is 22100222219. The next prime is 22100222239. The reversal of 22100222222 is 22222200122.

It is a sphenic number, since it is the product of 3 distinct primes.

22100222222 is a modest number, since divided by 222222 gives 22100 as remainder.

It is a self number, because there is not a number n which added to its sum of digits gives 22100222222.

It is a congruent number.

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, 425004248 + ... + 425004299.

It is an arithmetic number, because the mean of its divisors is an integer number (4462544877).

Almost surely, 2^22100222222 is an apocalyptic number.

22100222222 is a deficient number, since it is larger than the sum of its proper divisors (13600136794).

22100222222 is a wasteful number, since it uses less digits than its factorization.

22100222222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 850008562.

The product of its (nonzero) digits is 256, while the sum is 17.

Adding to 22100222222 its reverse (22222200122), we get a palindrome (44322422344).

The spelling of 22100222222 in words is "twenty-two billion, one hundred million, two hundred twenty-two thousand, two hundred twenty-two".