221230134001 has 8 divisors (see below), whose sum is σ = 222661250504. Its totient is φ = 219803258880.

The previous prime is 221230133989. The next prime is 221230134031. The reversal of 221230134001 is 100431032122.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 89496705600 + 131733428401 = 299160^2 + 362951^2 .

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 221230134001 - 2²⁷ = 221095916273 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 221230134001.

It is not an unprimeable number, because it can be changed into a prime (221230134031) 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, 955656 + ... + 1164361.

It is an arithmetic number, because the mean of its divisors is an integer number (27832656313).

Almost surely, 2^221230134001 is an apocalyptic number.

It is an amenable number.

221230134001 is a deficient number, since it is larger than the sum of its proper divisors (1431116503).

221230134001 is a wasteful number, since it uses less digits than its factorization.

221230134001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2120691.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 221230134001 its reverse (100431032122), we get a palindrome (321661166123).

The spelling of 221230134001 in words is "two hundred twenty-one billion, two hundred thirty million, one hundred thirty-four thousand, one".