221222125311329 has 8 divisors (see below), whose sum is σ = 221303750980800. Its totient is φ = 221140512543600.

The previous prime is 221222125311307. The next prime is 221222125311377. The reversal of 221222125311329 is 923113521222122.

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 221222125311329 - 2³⁶ = 221153405834593 is a prime.

It is a super-2 number, since 2×221222125311329² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 221222125311292 and 221222125311301.

It is not an unprimeable number, because it can be changed into a prime (221222125311529) 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, 31141772 + ... + 37579970.

It is an arithmetic number, because the mean of its divisors is an integer number (27662968872600).

Almost surely, 2^{221222125311329} is an apocalyptic number.

It is an amenable number.

221222125311329 is a deficient number, since it is larger than the sum of its proper divisors (81625669471).

221222125311329 is an equidigital number, since it uses as much as digits as its factorization.

221222125311329 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6450871.

The product of its digits is 51840, while the sum is 38.

The spelling of 221222125311329 in words is "two hundred twenty-one trillion, two hundred twenty-two billion, one hundred twenty-five million, three hundred eleven thousand, three hundred twenty-nine".