1221331012093 has 8 divisors (see below), whose sum is σ = 1236491178048. Its totient is φ = 1206181449504.

The previous prime is 1221331012079. The next prime is 1221331012127. The reversal of 1221331012093 is 3902101331221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1221331012093 - 2⁵ = 1221331012061 is a prime.

It is a super-2 number, since 2×1221331012093² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1221331012043) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 2418921 + ... + 2879902.

It is an arithmetic number, because the mean of its divisors is an integer number (154561397256).

Almost surely, 2^{1221331012093} is an apocalyptic number.

It is an amenable number.

1221331012093 is a deficient number, since it is larger than the sum of its proper divisors (15160165955).

1221331012093 is an equidigital number, since it uses as much as digits as its factorization.

1221331012093 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5301683.

The product of its (nonzero) digits is 1944, while the sum is 28.

The spelling of 1221331012093 in words is "one trillion, two hundred twenty-one billion, three hundred thirty-one million, twelve thousand, ninety-three".