1012440220 has 48 divisors (see below), whose sum is σ = 2420264448. Its totient is φ = 352151360.

The previous prime is 1012440217. The next prime is 1012440223. The reversal of 1012440220 is 220442101.

1012440220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (1012440217) and next prime (1012440223).

It is a junction number, because it is equal to n+sod(n) for n = 1012440194 and 1012440203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1012440223) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 94984 + ... + 105103.

It is an arithmetic number, because the mean of its divisors is an integer number (50422176).

Almost surely, 2^1012440220 is an apocalyptic number.

1012440220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1012440220 is an abundant number, since it is smaller than the sum of its proper divisors (1407824228).

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

1012440220 is a wasteful number, since it uses less digits than its factorization.

1012440220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200130 (or 200128 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 1012440220 is about 31818.8657874538. The cubic root of 1012440220 is about 1004.1296624125.

Adding to 1012440220 its reverse (220442101), we get a palindrome (1232882321).

The spelling of 1012440220 in words is "one billion, twelve million, four hundred forty thousand, two hundred twenty".