1052221207 has 16 divisors (see below), whose sum is σ = 1100692800. Its totient is φ = 1004935680.

The previous prime is 1052221169. The next prime is 1052221211. The reversal of 1052221207 is 7021222501.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1052221207 is a prime.

It is a super-2 number, since 2×1052221207² = 2214338936921073698, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1052221277) 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, 705919 + ... + 707407.

It is an arithmetic number, because the mean of its divisors is an integer number (68793300).

Almost surely, 2^1052221207 is an apocalyptic number.

1052221207 is a deficient number, since it is larger than the sum of its proper divisors (48471593).

1052221207 is a wasteful number, since it uses less digits than its factorization.

1052221207 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1866.

The product of its (nonzero) digits is 560, while the sum is 22.

The square root of 1052221207 is about 32437.9593532022. The cubic root of 1052221207 is about 1017.1125589153.

Adding to 1052221207 its reverse (7021222501), we get a palindrome (8073443708).

The spelling of 1052221207 in words is "one billion, fifty-two million, two hundred twenty-one thousand, two hundred seven".