221201050351 has 4 divisors (see below), whose sum is σ = 221291449632. Its totient is φ = 221110651072.

The previous prime is 221201050349. The next prime is 221201050361. The reversal of 221201050351 is 153050102122.

221201050351 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 221201050351 - 2¹ = 221201050349 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 (221201050331) 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 3 ways as a sum of consecutive naturals, for example, 45195970 + ... + 45200863.

It is an arithmetic number, because the mean of its divisors is an integer number (55322862408).

Almost surely, 2^221201050351 is an apocalyptic number.

221201050351 is a deficient number, since it is larger than the sum of its proper divisors (90399281).

221201050351 is an equidigital number, since it uses as much as digits as its factorization.

221201050351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90399280.

The product of its (nonzero) digits is 600, while the sum is 22.

Adding to 221201050351 its reverse (153050102122), we get a palindrome (374251152473).

The spelling of 221201050351 in words is "two hundred twenty-one billion, two hundred one million, fifty thousand, three hundred fifty-one".