21201201110102 has 8 divisors (see below), whose sum is σ = 34248094100976. Its totient is φ = 9785169743112.

The previous prime is 21201201110051. The next prime is 21201201110143. The reversal of 21201201110102 is 20101110210212.

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 polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 407715405938 + ... + 407715405989.

It is an arithmetic number, because the mean of its divisors is an integer number (4281011762622).

Almost surely, 2^{21201201110102} is an apocalyptic number.

21201201110102 is a deficient number, since it is larger than the sum of its proper divisors (13046892990874).

21201201110102 is a wasteful number, since it uses less digits than its factorization.

21201201110102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 815430811942.

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

Adding to 21201201110102 its reverse (20101110210212), we get a palindrome (41302311320314).

The spelling of 21201201110102 in words is "twenty-one trillion, two hundred one billion, two hundred one million, one hundred ten thousand, one hundred two".