21010221101102 has 8 divisors (see below), whose sum is σ = 31566409986816. Its totient is φ = 10488084438832.

The previous prime is 21010221101101. The next prime is 21010221101117. The reversal of 21010221101102 is 20110112201012.

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

It is a super-2 number, since 2×21010221101102² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21010221101101) by changing a digit.

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, 8513054318 + ... + 8513056785.

It is an arithmetic number, because the mean of its divisors is an integer number (3945801248352).

Almost surely, 2^{21010221101102} is an apocalyptic number.

21010221101102 is a deficient number, since it is larger than the sum of its proper divisors (10556188885714).

21010221101102 is a wasteful number, since it uses less digits than its factorization.

21010221101102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17026111722.

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

Adding to 21010221101102 its reverse (20110112201012), we get a palindrome (41120333302114).

The spelling of 21010221101102 in words is "twenty-one trillion, ten billion, two hundred twenty-one million, one hundred one thousand, one hundred two".