1001012112222 has 16 divisors (see below), whose sum is σ = 2002158506640. Its totient is φ = 333648323712.

The previous prime is 1001012112211. The next prime is 1001012112251. The reversal of 1001012112222 is 2222112101001.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5498053 + ... + 5677200.

It is an arithmetic number, because the mean of its divisors is an integer number (125134906665).

Almost surely, 2^{1001012112222} is an apocalyptic number.

1001012112222 is an abundant number, since it is smaller than the sum of its proper divisors (1001146394418).

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

1001012112222 is a wasteful number, since it uses less digits than its factorization.

1001012112222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11190187.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 1001012112222 its reverse (2222112101001), we get a palindrome (3223124213223).

The spelling of 1001012112222 in words is "one trillion, one billion, twelve million, one hundred twelve thousand, two hundred twenty-two".