1021000122002 has 16 divisors (see below), whose sum is σ = 1853243919360. Its totient is φ = 411831981888.

The previous prime is 1021000122001. The next prime is 1021000122031. The reversal of 1021000122002 is 2002210001201.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1021000122001) 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, 2144958002 + ... + 2144958477.

It is an arithmetic number, because the mean of its divisors is an integer number (115827744960).

Almost surely, 2^{1021000122002} is an apocalyptic number.

1021000122002 is a deficient number, since it is larger than the sum of its proper divisors (832243797358).

1021000122002 is a wasteful number, since it uses less digits than its factorization.

1021000122002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4289916505.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 1021000122002 its reverse (2002210001201), we get a palindrome (3023210123203).

The spelling of 1021000122002 in words is "one trillion, twenty-one billion, one hundred twenty-two thousand, two".