222201020011021 has 2 divisors, whose sum is σ = 222201020011022. Its totient is φ = 222201020011020.

The previous prime is 222201020011001. The next prime is 222201020011073. The reversal of 222201020011021 is 120110020102222.

It is a happy number.

222201020011021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 138599055296100 + 83601964714921 = 11772810^2 + 9143411^2 .

It is a cyclic number.

It is not a de Polignac number, because 222201020011021 - 2⁵ = 222201020010989 is a prime.

It is a super-2 number, since 2×222201020011021² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 222201020010986 and 222201020011004.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (222201020011001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111100510005510 + 111100510005511.

It is an arithmetic number, because the mean of its divisors is an integer number (111100510005511).

Almost surely, 2^{222201020011021} is an apocalyptic number.

It is an amenable number.

222201020011021 is a deficient number, since it is larger than the sum of its proper divisors (1).

222201020011021 is an equidigital number, since it uses as much as digits as its factorization.

222201020011021 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 222201020011021 its reverse (120110020102222), we get a palindrome (342311040113243).

The spelling of 222201020011021 in words is "two hundred twenty-two trillion, two hundred one billion, twenty million, eleven thousand, twenty-one".