22210100212121 has 2 divisors, whose sum is σ = 22210100212122. Its totient is φ = 22210100212120.

The previous prime is 22210100212109. The next prime is 22210100212133. The reversal of 22210100212121 is 12121200101222.

It is a balanced prime because it is at equal distance from previous prime (22210100212109) and next prime (22210100212133).

It can be written as a sum of positive squares in only one way, i.e., 21841966784521 + 368133427600 = 4673539^2 + 606740^2 .

It is a cyclic number.

It is not a de Polignac number, because 22210100212121 - 2¹⁴ = 22210100195737 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22210100212121.

It is not a weakly prime, because it can be changed into another prime (22210100212621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11105050106060 + 11105050106061.

It is an arithmetic number, because the mean of its divisors is an integer number (11105050106061).

Almost surely, 2^{22210100212121} is an apocalyptic number.

It is an amenable number.

22210100212121 is a deficient number, since it is larger than the sum of its proper divisors (1).

22210100212121 is an equidigital number, since it uses as much as digits as its factorization.

22210100212121 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 17.

Adding to 22210100212121 its reverse (12121200101222), we get a palindrome (34331300313343).

The spelling of 22210100212121 in words is "twenty-two trillion, two hundred ten billion, one hundred million, two hundred twelve thousand, one hundred twenty-one".