1002212221212 has 96 divisors (see below), whose sum is σ = 2603441111040. Its totient is φ = 333413962560.

The previous prime is 1002212221189. The next prime is 1002212221243. The reversal of 1002212221212 is 2121222122001.

It is a happy number.

1002212221212 is a `hidden beast` number, since 10 + 0 + 221 + 2 + 221 + 212 = 666.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 172584013 + ... + 172589819.

It is an arithmetic number, because the mean of its divisors is an integer number (27119178240).

Almost surely, 2^{1002212221212} is an apocalyptic number.

1002212221212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1002212221212 is an abundant number, since it is smaller than the sum of its proper divisors (1601228889828).

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

1002212221212 is a wasteful number, since it uses less digits than its factorization.

1002212221212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8688 (or 8680 counting only the distinct ones).

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

Adding to 1002212221212 its reverse (2121222122001), we get a palindrome (3123434343213).

The spelling of 1002212221212 in words is "one trillion, two billion, two hundred twelve million, two hundred twenty-one thousand, two hundred twelve".