222100051 has 16 divisors (see below), whose sum is σ = 232948224. Its totient is φ = 211577184.

The previous prime is 222100049. The next prime is 222100079. The reversal of 222100051 is 150001222.

It is a cyclic number.

It is not a de Polignac number, because 222100051 - 2¹ = 222100049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (222100951) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 405760 + ... + 406306.

It is an arithmetic number, because the mean of its divisors is an integer number (14559264).

Almost surely, 2^222100051 is an apocalyptic number.

222100051 is a deficient number, since it is larger than the sum of its proper divisors (10848173).

222100051 is a wasteful number, since it uses less digits than its factorization.

222100051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 810.

The product of its (nonzero) digits is 40, while the sum is 13.

The square root of 222100051 is about 14903.0215392718. The cubic root of 222100051 is about 605.5958440078.

Adding to 222100051 its reverse (150001222), we get a palindrome (372101273).

The spelling of 222100051 in words is "two hundred twenty-two million, one hundred thousand, fifty-one".