1052047221 has 8 divisors (see below), whose sum is σ = 1406264544. Its totient is φ = 699597360.

The previous prime is 1052047211. The next prime is 1052047229. The reversal of 1052047221 is 1227402501.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1052047221 - 2²³ = 1043658613 is a prime.

It is a super-2 number, since 2×1052047221² = 2213606710427645682, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1052047191 and 1052047200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1052047229) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 440475 + ... + 442856.

It is an arithmetic number, because the mean of its divisors is an integer number (175783068).

Almost surely, 2^1052047221 is an apocalyptic number.

It is an amenable number.

1052047221 is a deficient number, since it is larger than the sum of its proper divisors (354217323).

1052047221 is an equidigital number, since it uses as much as digits as its factorization.

1052047221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 883731.

The product of its (nonzero) digits is 1120, while the sum is 24.

The square root of 1052047221 is about 32435.2774151848. The cubic root of 1052047221 is about 1017.0564955771.

Adding to 1052047221 its reverse (1227402501), we get a palindrome (2279449722).

The spelling of 1052047221 in words is "one billion, fifty-two million, forty-seven thousand, two hundred twenty-one".