2021011102102 has 16 divisors (see below), whose sum is σ = 3209902007040. Its totient is φ = 951046019968.

The previous prime is 2021011102067. The next prime is 2021011102109. The reversal of 2021011102102 is 2012011101202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2021011102109) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1350924 + ... + 2422192.

It is an arithmetic number, because the mean of its divisors is an integer number (200618875440).

Almost surely, 2^{2021011102102} is an apocalyptic number.

2021011102102 is a deficient number, since it is larger than the sum of its proper divisors (1188890904938).

2021011102102 is a wasteful number, since it uses less digits than its factorization.

2021011102102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1126775.

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

Adding to 2021011102102 its reverse (2012011101202), we get a palindrome (4033022203304).

The spelling of 2021011102102 in words is "two trillion, twenty-one billion, eleven million, one hundred two thousand, one hundred two".