1022110120205 has 4 divisors (see below), whose sum is σ = 1226532144252. Its totient is φ = 817688096160.

The previous prime is 1022110120201. The next prime is 1022110120217. The reversal of 1022110120205 is 5020210112201.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 770710165801 + 251399954404 = 877901^2 + 501398^2 .

It is not a de Polignac number, because 1022110120205 - 2² = 1022110120201 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1022110120201) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 102211012016 + ... + 102211012025.

It is an arithmetic number, because the mean of its divisors is an integer number (306633036063).

Almost surely, 2^{1022110120205} is an apocalyptic number.

It is an amenable number.

1022110120205 is a deficient number, since it is larger than the sum of its proper divisors (204422024047).

1022110120205 is an equidigital number, since it uses as much as digits as its factorization.

1022110120205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 204422024046.

The product of its (nonzero) digits is 80, while the sum is 17.

Adding to 1022110120205 its reverse (5020210112201), we get a palindrome (6042320232406).

The spelling of 1022110120205 in words is "one trillion, twenty-two billion, one hundred ten million, one hundred twenty thousand, two hundred five".