1052221015 has 4 divisors (see below), whose sum is σ = 1262665224. Its totient is φ = 841776808.

The previous prime is 1052221013. The next prime is 1052221019. The reversal of 1052221015 is 5101222501.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1052221015 - 2¹ = 1052221013 is a prime.

It is a super-2 number, since 2×1052221015² = 2214338128815260450, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1052220983 and 1052221001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1052221013) 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, 105222097 + ... + 105222106.

It is an arithmetic number, because the mean of its divisors is an integer number (315666306).

Almost surely, 2^1052221015 is an apocalyptic number.

1052221015 is a deficient number, since it is larger than the sum of its proper divisors (210444209).

1052221015 is an equidigital number, since it uses as much as digits as its factorization.

1052221015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210444208.

The product of its (nonzero) digits is 200, while the sum is 19.

The square root of 1052221015 is about 32437.9563937064. The cubic root of 1052221015 is about 1017.1124970508.

Adding to 1052221015 its reverse (5101222501), we get a palindrome (6153443516).

The spelling of 1052221015 in words is "one billion, fifty-two million, two hundred twenty-one thousand, fifteen".