1221030410 has 16 divisors (see below), whose sum is σ = 2219617512. Its totient is φ = 483576000.

The previous prime is 1221030407. The next prime is 1221030431. The reversal of 1221030410 is 140301221.

It can be written as a sum of positive squares in 4 ways, for example, as 1174912729 + 46117681 = 34277^2 + 6791^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 603461 + ... + 605480.

Almost surely, 2^1221030410 is an apocalyptic number.

1221030410 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1221030410 is a deficient number, since it is larger than the sum of its proper divisors (998587102).

1221030410 is a wasteful number, since it uses less digits than its factorization.

1221030410 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1209049.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 1221030410 is about 34943.2455561873. The cubic root of 1221030410 is about 1068.8304716490.

Adding to 1221030410 its reverse (140301221), we get a palindrome (1361331631).

The spelling of 1221030410 in words is "one billion, two hundred twenty-one million, thirty thousand, four hundred ten".