2221201320029 has 8 divisors (see below), whose sum is σ = 2227118985720. Its totient is φ = 2215289748736.

The previous prime is 2221201320017. The next prime is 2221201320047. The reversal of 2221201320029 is 9200231021222.

It can be written as a sum of positive squares in 4 ways, for example, as 1763145787225 + 458055532804 = 1327835^2 + 676798^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2221201320029 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 (2221201320049) 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, 793232 + ... + 2252025.

It is an arithmetic number, because the mean of its divisors is an integer number (278389873215).

Almost surely, 2^{2221201320029} is an apocalyptic number.

It is an amenable number.

2221201320029 is a deficient number, since it is larger than the sum of its proper divisors (5917665691).

2221201320029 is a wasteful number, since it uses less digits than its factorization.

2221201320029 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3047199.

The product of its (nonzero) digits is 1728, while the sum is 26.

The spelling of 2221201320029 in words is "two trillion, two hundred twenty-one billion, two hundred one million, three hundred twenty thousand, twenty-nine".