21222100000101 has 256 divisors, whose sum is σ = 40316527706112. Its totient is φ = 9572710118400.

The previous prime is 21222100000097. The next prime is 21222100000121. The reversal of 21222100000101 is 10100000122212.

It is not a de Polignac number, because 21222100000101 - 2² = 21222100000097 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21222100000121) by changing a digit.

It is a polite number, since it can be written in 255 ways as a sum of consecutive naturals, for example, 4570770886 + ... + 4570775528.

It is an arithmetic number, because the mean of its divisors is an integer number (157486436352).

Almost surely, 2^{21222100000101} is an apocalyptic number.

21222100000101 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

21222100000101 is a deficient number, since it is larger than the sum of its proper divisors (19094427706011).

21222100000101 is a wasteful number, since it uses less digits than its factorization.

21222100000101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6072.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 21222100000101 its reverse (10100000122212), we get a palindrome (31322100122313).

The spelling of 21222100000101 in words is "twenty-one trillion, two hundred twenty-two billion, one hundred million, one hundred one", and thus it is an aban number.