1002020121102 has 128 divisors (see below), whose sum is σ = 2753315389440. Its totient is φ = 234657440640.

The previous prime is 1002020121061. The next prime is 1002020121119. The reversal of 1002020121102 is 2011210202001.

It is a congruent number.

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 63 ways as a sum of consecutive naturals, for example, 1681702 + ... + 2198217.

It is an arithmetic number, because the mean of its divisors is an integer number (21510276480).

Almost surely, 2^{1002020121102} is an apocalyptic number.

1002020121102 is an abundant number, since it is smaller than the sum of its proper divisors (1751295268338).

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

1002020121102 is a wasteful number, since it uses less digits than its factorization.

1002020121102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3879998.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 1002020121102 its reverse (2011210202001), we get a palindrome (3013230323103).

The spelling of 1002020121102 in words is "one trillion, two billion, twenty million, one hundred twenty-one thousand, one hundred two".