20210120011002 has 32 divisors (see below), whose sum is σ = 40570359897600. Its totient is φ = 6711726189888.

The previous prime is 20210120010961. The next prime is 20210120011019. The reversal of 20210120011002 is 20011002101202.

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 15 ways as a sum of consecutive naturals, for example, 2889802 + ... + 6983637.

It is an arithmetic number, because the mean of its divisors is an integer number (1267823746800).

Almost surely, 2^{20210120011002} is an apocalyptic number.

20210120011002 is an abundant number, since it is smaller than the sum of its proper divisors (20360239886598).

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

20210120011002 is a wasteful number, since it uses less digits than its factorization.

20210120011002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9874710.

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

Adding to 20210120011002 its reverse (20011002101202), we get a palindrome (40221122112204).

The spelling of 20210120011002 in words is "twenty trillion, two hundred ten billion, one hundred twenty million, eleven thousand, two".