1002212122212 has 72 divisors (see below), whose sum is σ = 2904413069376. Its totient is φ = 285442997184.

The previous prime is 1002212122187. The next prime is 1002212122243. The reversal of 1002212122212 is 2122212122001.

It is a happy number.

1002212122212 is a `hidden beast` number, since 10 + 0 + 221 + 212 + 221 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6193038 + ... + 6352805.

It is an arithmetic number, because the mean of its divisors is an integer number (40339070408).

Almost surely, 2^{1002212122212} is an apocalyptic number.

1002212122212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1002212122212 is an abundant number, since it is smaller than the sum of its proper divisors (1902200947164).

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

1002212122212 is a wasteful number, since it uses less digits than its factorization.

1002212122212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12546177 (or 12546172 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 1002212122212 its reverse (2122212122001), we get a palindrome (3124424244213).

The spelling of 1002212122212 in words is "one trillion, two billion, two hundred twelve million, one hundred twenty-two thousand, two hundred twelve".