22100210122021 has 2 divisors, whose sum is σ = 22100210122022. Its totient is φ = 22100210122020.

The previous prime is 22100210121931. The next prime is 22100210122063. The reversal of 22100210122021 is 12022101200122.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22072848330625 + 27361791396 = 4698175^2 + 165414^2 .

It is a cyclic number.

It is not a de Polignac number, because 22100210122021 - 2¹¹ = 22100210119973 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22100210121986 and 22100210122004.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22100280122021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11050105061010 + 11050105061011.

It is an arithmetic number, because the mean of its divisors is an integer number (11050105061011).

Almost surely, 2^{22100210122021} is an apocalyptic number.

It is an amenable number.

22100210122021 is a deficient number, since it is larger than the sum of its proper divisors (1).

22100210122021 is an equidigital number, since it uses as much as digits as its factorization.

22100210122021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 22100210122021 its reverse (12022101200122), we get a palindrome (34122311322143).

The spelling of 22100210122021 in words is "twenty-two trillion, one hundred billion, two hundred ten million, one hundred twenty-two thousand, twenty-one".