21000102001102 has 16 divisors (see below), whose sum is σ = 36000240092640. Its totient is φ = 9000027406368.

The previous prime is 21000102001069. The next prime is 21000102001117. The reversal of 21000102001102 is 20110020100012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9805924 + ... + 11753992.

It is an arithmetic number, because the mean of its divisors is an integer number (2250015005790).

Almost surely, 2^{21000102001102} is an apocalyptic number.

21000102001102 is a deficient number, since it is larger than the sum of its proper divisors (15000138091538).

21000102001102 is a wasteful number, since it uses less digits than its factorization.

21000102001102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2718075.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 21000102001102 its reverse (20110020100012), we get a palindrome (41110122101114).

The spelling of 21000102001102 in words is "twenty-one trillion, one hundred two million, one thousand, one hundred two".