1001002221212 has 24 divisors (see below), whose sum is σ = 2003513186304. Its totient is φ = 428677649712.

The previous prime is 1001002221179. The next prime is 1001002221221. The reversal of 1001002221212 is 2121222001001.

It is a Harshad number since it is a multiple of its sum of digits (14).

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 7 ways as a sum of consecutive naturals, for example, 13433108 + ... + 13507419.

It is an arithmetic number, because the mean of its divisors is an integer number (83479716096).

Almost surely, 2^{1001002221212} is an apocalyptic number.

It is an amenable number.

1001002221212 is an abundant number, since it is smaller than the sum of its proper divisors (1002510965092).

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

1001002221212 is a wasteful number, since it uses less digits than its factorization.

1001002221212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26941865 (or 26941863 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 1001002221212 its reverse (2121222001001), we get a palindrome (3122224222213).

The spelling of 1001002221212 in words is "one trillion, one billion, two million, two hundred twenty-one thousand, two hundred twelve".