1022120205 has 8 divisors (see below), whose sum is σ = 1635392352. Its totient is φ = 545130768.

The previous prime is 1022120179. The next prime is 1022120221. The reversal of 1022120205 is 5020212201.

1022120205 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1022120205 - 2²⁶ = 955011341 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15), and also a Moran number because the ratio is a prime number: 68141347 = 1022120205 / (1 + 0 + 2 + 2 + 1 + 2 + 0 + 2 + 0 + 5).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34070659 + ... + 34070688.

It is an arithmetic number, because the mean of its divisors is an integer number (204424044).

Almost surely, 2^1022120205 is an apocalyptic number.

1022120205 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1022120205 is a deficient number, since it is larger than the sum of its proper divisors (613272147).

1022120205 is an equidigital number, since it uses as much as digits as its factorization.

1022120205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68141355.

The product of its (nonzero) digits is 80, while the sum is 15.

The square root of 1022120205 is about 31970.6147110124. The cubic root of 1022120205 is about 1007.3196930359.

Adding to 1022120205 its reverse (5020212201), we get a palindrome (6042332406).

The spelling of 1022120205 in words is "one billion, twenty-two million, one hundred twenty thousand, two hundred five".