21011201120102 has 8 divisors (see below), whose sum is σ = 31593859876200. Its totient is φ = 10479914494704.

The previous prime is 21011201120093. The next prime is 21011201120113. The reversal of 21011201120102 is 20102110211012.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 12843031652 + ... + 12843033287.

It is an arithmetic number, because the mean of its divisors is an integer number (3949232484525).

Almost surely, 2^{21011201120102} is an apocalyptic number.

21011201120102 is a deficient number, since it is larger than the sum of its proper divisors (10582658756098).

21011201120102 is a wasteful number, since it uses less digits than its factorization.

21011201120102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25686065350.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 21011201120102 its reverse (20102110211012), we get a palindrome (41113311331114).

The spelling of 21011201120102 in words is "twenty-one trillion, eleven billion, two hundred one million, one hundred twenty thousand, one hundred two".