1022222121211 has 2 divisors, whose sum is σ = 1022222121212. Its totient is φ = 1022222121210.

The previous prime is 1022222121181. The next prime is 1022222121223. The reversal of 1022222121211 is 1121212222201.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1022222121211 - 2¹⁵ = 1022222088443 is a prime.

It is a super-2 number, since 2×1022222121211² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1022222121241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 511111060605 + 511111060606.

It is an arithmetic number, because the mean of its divisors is an integer number (511111060606).

Almost surely, 2^{1022222121211} is an apocalyptic number.

1022222121211 is a deficient number, since it is larger than the sum of its proper divisors (1).

1022222121211 is an equidigital number, since it uses as much as digits as its factorization.

1022222121211 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 1022222121211 its reverse (1121212222201), we get a palindrome (2143434343412).

The spelling of 1022222121211 in words is "one trillion, twenty-two billion, two hundred twenty-two million, one hundred twenty-one thousand, two hundred eleven".