1022120442 has 48 divisors (see below), whose sum is σ = 2532771072. Its totient is φ = 291826080.

The previous prime is 1022120431. The next prime is 1022120467. The reversal of 1022120442 is 2440212201.

1022120442 is a `hidden beast` number, since 1 + 0 + 221 + 2 + 0 + 442 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 298303 + ... + 301709.

It is an arithmetic number, because the mean of its divisors is an integer number (52766064).

Almost surely, 2^1022120442 is an apocalyptic number.

1022120442 is an abundant number, since it is smaller than the sum of its proper divisors (1510650630).

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

1022120442 is a wasteful number, since it uses less digits than its factorization.

1022120442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5803 (or 5800 counting only the distinct ones).

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

The square root of 1022120442 is about 31970.6184175408. The cubic root of 1022120442 is about 1007.3197708920.

Adding to 1022120442 its reverse (2440212201), we get a palindrome (3462332643).

The spelling of 1022120442 in words is "one billion, twenty-two million, one hundred twenty thousand, four hundred forty-two".