1022120004 has 24 divisors (see below), whose sum is σ = 2388617280. Its totient is φ = 340182304.

The previous prime is 1022119981. The next prime is 1022120009. The reversal of 1022120004 is 4000212201.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is not an unprimeable number, because it can be changed into a prime (1022120009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57384 + ... + 73055.

It is an arithmetic number, because the mean of its divisors is an integer number (99525720).

Almost surely, 2^1022120004 is an apocalyptic number.

It is an amenable number.

1022120004 is an abundant number, since it is smaller than the sum of its proper divisors (1366497276).

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

1022120004 is a wasteful number, since it uses less digits than its factorization.

1022120004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131099 (or 131097 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

The square root of 1022120004 is about 31970.6115675006. The cubic root of 1022120004 is about 1007.3196270061.

Adding to 1022120004 its reverse (4000212201), we get a palindrome (5022332205).

The spelling of 1022120004 in words is "one billion, twenty-two million, one hundred twenty thousand, four".