21222120011102 has 16 divisors (see below), whose sum is σ = 31982462426880. Its totient is φ = 10561343894808.

The previous prime is 21222120011051. The next prime is 21222120011167. The reversal of 21222120011102 is 20111002122212.

It is a super-3 number, since 3×21222120011102³ (a number of 41 digits) contains 333 as substring.

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, 10222268 + ... + 12121839.

It is an arithmetic number, because the mean of its divisors is an integer number (1998903901680).

Almost surely, 2^{21222120011102} is an apocalyptic number.

21222120011102 is a deficient number, since it is larger than the sum of its proper divisors (10760342415778).

21222120011102 is a wasteful number, since it uses less digits than its factorization.

21222120011102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22346335.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 21222120011102 its reverse (20111002122212), we get a palindrome (41333122133314).

The spelling of 21222120011102 in words is "twenty-one trillion, two hundred twenty-two billion, one hundred twenty million, eleven thousand, one hundred two".