21112020011002 has 16 divisors (see below), whose sum is σ = 31791598479360. Its totient is φ = 10514821413888.

The previous prime is 21112020010973. The next prime is 21112020011023. The reversal of 21112020011002 is 20011002021112.

It is an unprimeable number.

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, 66026749 + ... + 66345727.

It is an arithmetic number, because the mean of its divisors is an integer number (1986974904960).

Almost surely, 2^{21112020011002} is an apocalyptic number.

21112020011002 is a deficient number, since it is larger than the sum of its proper divisors (10679578468358).

21112020011002 is a wasteful number, since it uses less digits than its factorization.

21112020011002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 448005.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 21112020011002 its reverse (20011002021112), we get a palindrome (41123022032114).

The spelling of 21112020011002 in words is "twenty-one trillion, one hundred twelve billion, twenty million, eleven thousand, two".