1052212220 has 48 divisors (see below), whose sum is σ = 2320043040. Its totient is φ = 400291584.

The previous prime is 1052212219. The next prime is 1052212247. The reversal of 1052212220 is 222122501.

It is a super-2 number, since 2×1052212220² = 2214301111834656800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25322 + ... + 52398.

It is an arithmetic number, because the mean of its divisors is an integer number (48334230).

Almost surely, 2^1052212220 is an apocalyptic number.

1052212220 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 1052212220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1160021520).

1052212220 is an abundant number, since it is smaller than the sum of its proper divisors (1267830820).

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

1052212220 is a wasteful number, since it uses less digits than its factorization.

1052212220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27182 (or 27180 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 17.

The square root of 1052212220 is about 32437.8208269298. The cubic root of 1052212220 is about 1017.1096631945.

Adding to 1052212220 its reverse (222122501), we get a palindrome (1274334721).

The spelling of 1052212220 in words is "one billion, fifty-two million, two hundred twelve thousand, two hundred twenty".