1015052220 has 288 divisors, whose sum is σ = 3913728000. Its totient is φ = 207152640.

The previous prime is 1015052197. The next prime is 1015052243. The reversal of 1015052220 is 222505101.

It is an interprime number because it is at equal distance from previous prime (1015052197) and next prime (1015052243).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 1015052193 and 1015052202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 506781 + ... + 508779.

Almost surely, 2^1015052220 is an apocalyptic number.

1015052220 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 1015052220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1956864000).

1015052220 is an abundant number, since it is smaller than the sum of its proper divisors (2898675780).

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

1015052220 is a wasteful number, since it uses less digits than its factorization.

1015052220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2065 (or 2060 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 18.

The square root of 1015052220 is about 31859.8841805804. The cubic root of 1015052220 is about 1004.9924407243.

Adding to 1015052220 its reverse (222505101), we get a palindrome (1237557321).

The spelling of 1015052220 in words is "one billion, fifteen million, fifty-two thousand, two hundred twenty".