1022120146 has 4 divisors (see below), whose sum is σ = 1533180222. Its totient is φ = 511060072.

The previous prime is 1022120129. The next prime is 1022120149. The reversal of 1022120146 is 6410212201.

1022120146 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6410212201 = 2293 ⋅2795557.

It can be written as a sum of positive squares in only one way, i.e., 1008761121 + 13359025 = 31761^2 + 3655^2 .

It is a super-2 number, since 2×1022120146² = 2089459185718122632, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1022120149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 255530035 + ... + 255530038.

Almost surely, 2^1022120146 is an apocalyptic number.

1022120146 is a deficient number, since it is larger than the sum of its proper divisors (511060076).

1022120146 is an equidigital number, since it uses as much as digits as its factorization.

1022120146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 511060075.

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 1022120146 is about 31970.6137882900. The cubic root of 1022120146 is about 1007.3196736540.

Adding to 1022120146 its reverse (6410212201), we get a palindrome (7432332347).

The spelling of 1022120146 in words is "one billion, twenty-two million, one hundred twenty thousand, one hundred forty-six".