1022222021173 has 2 divisors, whose sum is σ = 1022222021174. Its totient is φ = 1022222021172.

The previous prime is 1022222021167. The next prime is 1022222021207. The reversal of 1022222021173 is 3711202222201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 794447777124 + 227774244049 = 891318^2 + 477257^2 .

It is a cyclic number.

It is not a de Polignac number, because 1022222021173 - 2¹⁷ = 1022221890101 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1022222021153) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 511111010586 + 511111010587.

It is an arithmetic number, because the mean of its divisors is an integer number (511111010587).

Almost surely, 2^{1022222021173} is an apocalyptic number.

It is an amenable number.

1022222021173 is a deficient number, since it is larger than the sum of its proper divisors (1).

1022222021173 is an equidigital number, since it uses as much as digits as its factorization.

1022222021173 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1344, while the sum is 25.

Adding to 1022222021173 its reverse (3711202222201), we get a palindrome (4733424243374).

The spelling of 1022222021173 in words is "one trillion, twenty-two billion, two hundred twenty-two million, twenty-one thousand, one hundred seventy-three".