1001001000222 has 48 divisors (see below), whose sum is σ = 2221855507872. Its totient is φ = 325510967040.

The previous prime is 1001001000163. The next prime is 1001001000271. The reversal of 1001001000222 is 2220001001001.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 23991463 + ... + 24033149.

It is an arithmetic number, because the mean of its divisors is an integer number (46288656414).

Almost surely, 2^{1001001000222} is an apocalyptic number.

1001001000222 is an abundant number, since it is smaller than the sum of its proper divisors (1220854507650).

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

1001001000222 is a wasteful number, since it uses less digits than its factorization.

1001001000222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74273 (or 74270 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 1001001000222 its reverse (2220001001001), we get a palindrome (3221002001223).

The spelling of 1001001000222 in words is "one trillion, one billion, one million, two hundred twenty-two", and thus it is an aban number.