1002212220009 has 128 divisors (see below), whose sum is σ = 1844495106048. Its totient is φ = 467127336960.

The previous prime is 1002212219993. The next prime is 1002212220011. The reversal of 1002212220009 is 9000222122001.

It is a happy number.

It is not a de Polignac number, because 1002212220009 - 2⁴ = 1002212219993 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (1002212220019) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 128107072 + ... + 128114894.

It is an arithmetic number, because the mean of its divisors is an integer number (14410118016).

Almost surely, 2^{1002212220009} is an apocalyptic number.

It is an amenable number.

1002212220009 is a deficient number, since it is larger than the sum of its proper divisors (842282886039).

1002212220009 is a wasteful number, since it uses less digits than its factorization.

1002212220009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9047.

The product of its (nonzero) digits is 288, while the sum is 21.

It can be divided in two parts, 1002212 and 220009, that added together give a palindrome (1222221).

The spelling of 1002212220009 in words is "one trillion, two billion, two hundred twelve million, two hundred twenty thousand, nine".