1020022140 has 48 divisors (see below), whose sum is σ = 2948198400. Its totient is φ = 263231040.

The previous prime is 1020022121. The next prime is 1020022141. The reversal of 1020022140 is 412200201.

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

1020022140 is a modest number, since divided by 22140 gives 10200 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020022141) 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 15 ways as a sum of consecutive naturals, for example, 272340 + ... + 276059.

It is an arithmetic number, because the mean of its divisors is an integer number (61420800).

Almost surely, 2^1020022140 is an apocalyptic number.

1020022140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1020022140 is an abundant number, since it is smaller than the sum of its proper divisors (1928176260).

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

1020022140 is a wasteful number, since it uses less digits than its factorization.

1020022140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 548442 (or 548440 counting only the distinct ones).

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

The square root of 1020022140 is about 31937.7854586069. The cubic root of 1020022140 is about 1006.6299927188.

Adding to 1020022140 its reverse (412200201), we get a palindrome (1432222341).

The spelling of 1020022140 in words is "one billion, twenty million, twenty-two thousand, one hundred forty".