1221404241030 has 64 divisors (see below), whose sum is σ = 2940626566080. Its totient is φ = 324680361984.

The previous prime is 1221404240993. The next prime is 1221404241053. The reversal of 1221404241030 is 301424041221.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 19131322 + ... + 19195058.

It is an arithmetic number, because the mean of its divisors is an integer number (45947290095).

Almost surely, 2^{1221404241030} is an apocalyptic number.

1221404241030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1221404241030 is an abundant number, since it is smaller than the sum of its proper divisors (1719222325050).

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

1221404241030 is a wasteful number, since it uses less digits than its factorization.

1221404241030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65753.

The product of its (nonzero) digits is 1536, while the sum is 24.

Adding to 1221404241030 its reverse (301424041221), we get a palindrome (1522828282251).

The spelling of 1221404241030 in words is "one trillion, two hundred twenty-one billion, four hundred four million, two hundred forty-one thousand, thirty".