1001020122002 has 8 divisors (see below), whose sum is σ = 1504062276156. Its totient is φ = 499666029952.

The previous prime is 1001020121923. The next prime is 1001020122107. The reversal of 1001020122002 is 2002210201001.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 968942953801 + 32077168201 = 984349^2 + 179101^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 422014043 + ... + 422016414.

Almost surely, 2^{1001020122002} is an apocalyptic number.

1001020122002 is a deficient number, since it is larger than the sum of its proper divisors (503042154154).

1001020122002 is an equidigital number, since it uses as much as digits as its factorization.

1001020122002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 844031052.

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

Adding to 1001020122002 its reverse (2002210201001), we get a palindrome (3003230323003).

The spelling of 1001020122002 in words is "one trillion, one billion, twenty million, one hundred twenty-two thousand, two".