1013221210 has 16 divisors (see below), whose sum is σ = 1834343496. Its totient is φ = 402945088.

The previous prime is 1013221171. The next prime is 1013221211. The reversal of 1013221210 is 121223101.

1013221210 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 1013212561 + 8649 = 31831^2 + 93^2 .

It is not an unprimeable number, because it can be changed into a prime (1013221211) 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, 291109 + ... + 294568.

Almost surely, 2^1013221210 is an apocalyptic number.

1013221210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1013221210 is a deficient number, since it is larger than the sum of its proper divisors (821122286).

1013221210 is a wasteful number, since it uses less digits than its factorization.

1013221210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 585857.

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 1013221210 is about 31831.1358578358. The cubic root of 1013221210 is about 1004.3877891475.

Adding to 1013221210 its reverse (121223101), we get a palindrome (1134444311).

The spelling of 1013221210 in words is "one billion, thirteen million, two hundred twenty-one thousand, two hundred ten".