1020124220 has 12 divisors (see below), whose sum is σ = 2142260904. Its totient is φ = 408049680.

The previous prime is 1020124211. The next prime is 1020124229. The reversal of 1020124220 is 224210201.

It is an interprime number because it is at equal distance from previous prime (1020124211) and next prime (1020124229).

It is a junction number, because it is equal to n+sod(n) for n = 1020124195 and 1020124204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020124229) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25503086 + ... + 25503125.

It is an arithmetic number, because the mean of its divisors is an integer number (178521742).

Almost surely, 2^1020124220 is an apocalyptic number.

1020124220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1020124220 is an abundant number, since it is smaller than the sum of its proper divisors (1122136684).

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

1020124220 is a wasteful number, since it uses less digits than its factorization.

1020124220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51006220 (or 51006218 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 1020124220 is about 31939.3835256725. The cubic root of 1020124220 is about 1006.6635715200.

Adding to 1020124220 its reverse (224210201), we get a palindrome (1244334421).

The spelling of 1020124220 in words is "one billion, twenty million, one hundred twenty-four thousand, two hundred twenty".