221432217562229 has 8 divisors (see below), whose sum is σ = 221481886257240. Its totient is φ = 221382551808000.

The previous prime is 221432217562207. The next prime is 221432217562243. The reversal of 221432217562229 is 922265712234122.

221432217562229 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 23940489981604 + 197491727580625 = 4892902^2 + 14053175^2 .

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 221432217562229 - 2¹² = 221432217558133 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221432217562249) 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, 153492527 + ... + 154928435.

It is an arithmetic number, because the mean of its divisors is an integer number (27685235782155).

Almost surely, 2^{221432217562229} is an apocalyptic number.

It is an amenable number.

221432217562229 is a deficient number, since it is larger than the sum of its proper divisors (49668695011).

221432217562229 is a wasteful number, since it uses less digits than its factorization.

221432217562229 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1470391.

The product of its digits is 2903040, while the sum is 50.

The spelling of 221432217562229 in words is "two hundred twenty-one trillion, four hundred thirty-two billion, two hundred seventeen million, five hundred sixty-two thousand, two hundred twenty-nine".