1015264221 has 16 divisors (see below), whose sum is σ = 1439048640. Its totient is φ = 634867200.

The previous prime is 1015264171. The next prime is 1015264223. The reversal of 1015264221 is 1224625101.

It is not a de Polignac number, because 1015264221 - 2⁹ = 1015263709 is a prime.

It is a super-2 number, since 2×1015264221² = 2061522876885473682, which contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1015264191 and 1015264200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1015264223) 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, 82420 + ... + 93933.

It is an arithmetic number, because the mean of its divisors is an integer number (89940540).

Almost surely, 2^1015264221 is an apocalyptic number.

It is an amenable number.

1015264221 is a deficient number, since it is larger than the sum of its proper divisors (423784419).

1015264221 is a wasteful number, since it uses less digits than its factorization.

1015264221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176476.

The product of its (nonzero) digits is 960, while the sum is 24.

The square root of 1015264221 is about 31863.2110905351. The cubic root of 1015264221 is about 1005.0624025013.

Adding to 1015264221 its reverse (1224625101), we get a palindrome (2239889322).

The spelling of 1015264221 in words is "one billion, fifteen million, two hundred sixty-four thousand, two hundred twenty-one".