22010211012121 has 2 divisors, whose sum is σ = 22010211012122. Its totient is φ = 22010211012120.

The previous prime is 22010211012091. The next prime is 22010211012131. The reversal of 22010211012121 is 12121011201022.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17220508057600 + 4789702954521 = 4149760^2 + 2188539^2 .

It is a cyclic number.

It is not a de Polignac number, because 22010211012121 - 2¹⁹ = 22010210487833 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22010211012095 and 22010211012104.

It is not a weakly prime, because it can be changed into another prime (22010211012131) 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 as a sum of consecutive naturals, namely, 11005105506060 + 11005105506061.

It is an arithmetic number, because the mean of its divisors is an integer number (11005105506061).

Almost surely, 2^{22010211012121} is an apocalyptic number.

It is an amenable number.

22010211012121 is a deficient number, since it is larger than the sum of its proper divisors (1).

22010211012121 is an equidigital number, since it uses as much as digits as its factorization.

22010211012121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 22010211012121 its reverse (12121011201022), we get a palindrome (34131222213143).

The spelling of 22010211012121 in words is "twenty-two trillion, ten billion, two hundred eleven million, twelve thousand, one hundred twenty-one".