20100222222 has 8 divisors (see below), whose sum is σ = 40200444456. Its totient is φ = 6700074072.

The previous prime is 20100222211. The next prime is 20100222251. The reversal of 20100222222 is 22222200102.

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

20100222222 is an admirable number.

20100222222 is a modest number, since divided by 222222 gives 20100 as remainder.

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, 1675018513 + ... + 1675018524.

It is an arithmetic number, because the mean of its divisors is an integer number (5025055557).

Almost surely, 2^20100222222 is an apocalyptic number.

20100222222 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20100222222 is a wasteful number, since it uses less digits than its factorization.

20100222222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3350037042.

The product of its (nonzero) digits is 128, while the sum is 15.

Adding to 20100222222 its reverse (22222200102), we get a palindrome (42322422324).

The spelling of 20100222222 in words is "twenty billion, one hundred million, two hundred twenty-two thousand, two hundred twenty-two".