1221354133214 has 32 divisors (see below), whose sum is σ = 1992701399040. Its totient is φ = 559678319200.

The previous prime is 1221354133193. The next prime is 1221354133229. The reversal of 1221354133214 is 4123314531221.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3319742 + ... + 3669249.

It is an arithmetic number, because the mean of its divisors is an integer number (62271918720).

Almost surely, 2^{1221354133214} is an apocalyptic number.

1221354133214 is a deficient number, since it is larger than the sum of its proper divisors (771347265826).

1221354133214 is a wasteful number, since it uses less digits than its factorization.

1221354133214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6989176.

The product of its digits is 17280, while the sum is 32.

Adding to 1221354133214 its reverse (4123314531221), we get a palindrome (5344668664435).

The spelling of 1221354133214 in words is "one trillion, two hundred twenty-one billion, three hundred fifty-four million, one hundred thirty-three thousand, two hundred fourteen".