1021100002222 has 4 divisors (see below), whose sum is σ = 1531650003336. Its totient is φ = 510550001110.

The previous prime is 1021100002217. The next prime is 1021100002243. The reversal of 1021100002222 is 2222000011201.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 255275000554 + ... + 255275000557.

It is an arithmetic number, because the mean of its divisors is an integer number (382912500834).

Almost surely, 2^{1021100002222} is an apocalyptic number.

1021100002222 is a deficient number, since it is larger than the sum of its proper divisors (510550001114).

1021100002222 is an equidigital number, since it uses as much as digits as its factorization.

1021100002222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 510550001113.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 1021100002222 its reverse (2222000011201), we get a palindrome (3243100013423).

The spelling of 1021100002222 in words is "one trillion, twenty-one billion, one hundred million, two thousand, two hundred twenty-two".