1221111414304 has 48 divisors (see below), whose sum is σ = 2481983271936. Its totient is φ = 590772326400.

The previous prime is 1221111414301. The next prime is 1221111414317. The reversal of 1221111414304 is 4034141111221.

It is a super-2 number, since 2×1221111414304² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1221111414301) 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, 6832969 + ... + 7009399.

It is an arithmetic number, because the mean of its divisors is an integer number (51707984832).

Almost surely, 2^{1221111414304} is an apocalyptic number.

It is an amenable number.

1221111414304 is an abundant number, since it is smaller than the sum of its proper divisors (1260871857632).

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

1221111414304 is a wasteful number, since it uses less digits than its factorization.

1221111414304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183449 (or 183441 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 25.

Adding to 1221111414304 its reverse (4034141111221), we get a palindrome (5255252525525).

The spelling of 1221111414304 in words is "one trillion, two hundred twenty-one billion, one hundred eleven million, four hundred fourteen thousand, three hundred four".