21110122222101 has 48 divisors (see below), whose sum is σ = 33509150408448. Its totient is φ = 12699902822400.

The previous prime is 21110122222069. The next prime is 21110122222151. The reversal of 21110122222101 is 10122222101112.

21110122222101 is a `hidden beast` number, since 211 + 10 + 1 + 222 + 221 + 0 + 1 = 666.

It is not a de Polignac number, because 21110122222101 - 2⁵ = 21110122222069 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21110122222151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 326795316 + ... + 326859906.

It is an arithmetic number, because the mean of its divisors is an integer number (698107300176).

Almost surely, 2^{21110122222101} is an apocalyptic number.

It is an amenable number.

21110122222101 is a deficient number, since it is larger than the sum of its proper divisors (12399028186347).

21110122222101 is a wasteful number, since it uses less digits than its factorization.

21110122222101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88842 (or 88839 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 21110122222101 its reverse (10122222101112), we get a palindrome (31232344323213).

The spelling of 21110122222101 in words is "twenty-one trillion, one hundred ten billion, one hundred twenty-two million, two hundred twenty-two thousand, one hundred one".