1221014332213 has 24 divisors (see below), whose sum is σ = 1328932771296. Its totient is φ = 1121323694400.

The previous prime is 1221014332141. The next prime is 1221014332229. The reversal of 1221014332213 is 3122334101221.

It is not a de Polignac number, because 1221014332213 - 2¹³ = 1221014324021 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1221014333213) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 131612731 + ... + 131622007.

It is an arithmetic number, because the mean of its divisors is an integer number (55372198804).

Almost surely, 2^{1221014332213} is an apocalyptic number.

1221014332213 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1221014332213 is a deficient number, since it is larger than the sum of its proper divisors (107918439083).

1221014332213 is a wasteful number, since it uses less digits than its factorization.

1221014332213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13205 (or 13192 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 1221014332213 its reverse (3122334101221), we get a palindrome (4343348433434).

The spelling of 1221014332213 in words is "one trillion, two hundred twenty-one billion, fourteen million, three hundred thirty-two thousand, two hundred thirteen".