1002220121002 has 16 divisors (see below), whose sum is σ = 1505672893440. Its totient is φ = 500329277968.

The previous prime is 1002220120991. The next prime is 1002220121003. The reversal of 1002220121002 is 2001210222001.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1002220121003) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 23439399 + ... + 23482117.

It is an arithmetic number, because the mean of its divisors is an integer number (94104555840).

Almost surely, 2^{1002220121002} is an apocalyptic number.

1002220121002 is a deficient number, since it is larger than the sum of its proper divisors (503452772438).

1002220121002 is a wasteful number, since it uses less digits than its factorization.

1002220121002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60725.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 1002220121002 its reverse (2001210222001), we get a palindrome (3003430343003).

The spelling of 1002220121002 in words is "one trillion, two billion, two hundred twenty million, one hundred twenty-one thousand, two".