12221212220093 has 8 divisors (see below), whose sum is σ = 12561128056440. Its totient is φ = 11885798580480.

The previous prime is 12221212220083. The next prime is 12221212220101. The reversal of 12221212220093 is 39002221212221.

It can be written as a sum of positive squares in 4 ways, for example, as 1871692137604 + 10349520082489 = 1368098^2 + 3217067^2 .

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 12221212220093 - 2¹⁴ = 12221212203709 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12221212220023) 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, 1125543680 + ... + 1125554537.

It is an arithmetic number, because the mean of its divisors is an integer number (1570141007055).

Almost surely, 2^{12221212220093} is an apocalyptic number.

It is an amenable number.

12221212220093 is a deficient number, since it is larger than the sum of its proper divisors (339915836347).

12221212220093 is an equidigital number, since it uses as much as digits as its factorization.

12221212220093 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2251098367.

The product of its (nonzero) digits is 3456, while the sum is 29.

The spelling of 12221212220093 in words is "twelve trillion, two hundred twenty-one billion, two hundred twelve million, two hundred twenty thousand, ninety-three".