1002211221004 has 96 divisors (see below), whose sum is σ = 2065014604800. Its totient is φ = 416784614400.

The previous prime is 1002211220957. The next prime is 1002211221007. The reversal of 1002211221004 is 4001221122001.

It is not an unprimeable number, because it can be changed into a prime (1002211221007) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 31216192 + ... + 31248280.

It is an arithmetic number, because the mean of its divisors is an integer number (21510568800).

Almost surely, 2^{1002211221004} is an apocalyptic number.

1002211221004 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1002211221004 is an abundant number, since it is smaller than the sum of its proper divisors (1062803383796).

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

1002211221004 is a wasteful number, since it uses less digits than its factorization.

1002211221004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32423 (or 32421 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 1002211221004 its reverse (4001221122001), we get a palindrome (5003432343005).

The spelling of 1002211221004 in words is "one trillion, two billion, two hundred eleven million, two hundred twenty-one thousand, four".