1021122222222 has 8 divisors (see below), whose sum is σ = 2042244444456. Its totient is φ = 340374074072.

The previous prime is 1021122222203. The next prime is 1021122222227. The reversal of 1021122222222 is 2222222211201.

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

1021122222222 is an admirable number.

1021122222222 is a modest number, since divided by 2222222 gives 102112 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1021122222227) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 85093518513 + ... + 85093518524.

It is an arithmetic number, because the mean of its divisors is an integer number (255280555557).

Almost surely, 2^{1021122222222} is an apocalyptic number.

1021122222222 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.

1021122222222 is a wasteful number, since it uses less digits than its factorization.

1021122222222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170187037042.

The product of its (nonzero) digits is 512, while the sum is 21.

Adding to 1021122222222 its reverse (2222222211201), we get a palindrome (3243344433423).

The spelling of 1021122222222 in words is "one trillion, twenty-one billion, one hundred twenty-two million, two hundred twenty-two thousand, two hundred twenty-two".