1012130220 has 96 divisors (see below), whose sum is σ = 2887653888. Its totient is φ = 264835072.

The previous prime is 1012130213. The next prime is 1012130233. The reversal of 1012130220 is 220312101.

It is a super-4 number, since 4×1012130220⁴ (a number of 37 digits) contains 4444 as substring.

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

It is a junction number, because it is equal to n+sod(n) for n = 1012130196 and 1012130205.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 831052 + ... + 832268.

It is an arithmetic number, because the mean of its divisors is an integer number (30079728).

Almost surely, 2^1012130220 is an apocalyptic number.

1012130220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1012130220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1443826944).

1012130220 is an abundant number, since it is smaller than the sum of its proper divisors (1875523668).

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

1012130220 is a wasteful number, since it uses less digits than its factorization.

1012130220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1479 (or 1477 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 1012130220 is about 31813.9940906514. The cubic root of 1012130220 is about 1004.0271668231.

Adding to 1012130220 its reverse (220312101), we get a palindrome (1232442321).

The spelling of 1012130220 in words is "one billion, twelve million, one hundred thirty thousand, two hundred twenty".