1220532210 has 96 divisors (see below), whose sum is σ = 3277093248. Its totient is φ = 314979840.

The previous prime is 1220532199. The next prime is 1220532307. The reversal of 1220532210 is 122350221.

1220532210 is a `hidden beast` number, since 122 + 0 + 532 + 2 + 10 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 435915 + ... + 438705.

It is an arithmetic number, because the mean of its divisors is an integer number (34136388).

Almost surely, 2^1220532210 is an apocalyptic number.

1220532210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1220532210, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1638546624).

1220532210 is an abundant number, since it is smaller than the sum of its proper divisors (2056561038).

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

1220532210 is a wasteful number, since it uses less digits than its factorization.

1220532210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2960 (or 2957 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 1220532210 is about 34936.1161264386. The cubic root of 1220532210 is about 1068.6850852129.

Adding to 1220532210 its reverse (122350221), we get a palindrome (1342882431).

The spelling of 1220532210 in words is "one billion, two hundred twenty million, five hundred thirty-two thousand, two hundred ten".