1020122442 has 12 divisors (see below), whose sum is σ = 2210265330. Its totient is φ = 340040808.

The previous prime is 1020122431. The next prime is 1020122447. The reversal of 1020122442 is 2442210201.

1020122442 is a `hidden beast` number, since 1 + 0 + 201 + 22 + 442 = 666.

It can be written as a sum of positive squares in only one way, i.e., 933241401 + 86881041 = 30549^2 + 9321^2 .

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 56673469 = 1020122442 / (1 + 0 + 2 + 0 + 1 + 2 + 2 + 4 + 4 + 2).

It is not an unprimeable number, because it can be changed into a prime (1020122447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 28336717 + ... + 28336752.

Almost surely, 2^1020122442 is an apocalyptic number.

1020122442 is an abundant number, since it is smaller than the sum of its proper divisors (1190142888).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1020122442 is a wasteful number, since it uses less digits than its factorization.

1020122442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56673477 (or 56673474 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

The square root of 1020122442 is about 31939.3556916855. The cubic root of 1020122442 is about 1006.6629866733.

Adding to 1020122442 its reverse (2442210201), we get a palindrome (3462332643).

The spelling of 1020122442 in words is "one billion, twenty million, one hundred twenty-two thousand, four hundred forty-two".