222113451 has 16 divisors (see below), whose sum is σ = 338699264. Its totient is φ = 126831744.

The previous prime is 222113429. The next prime is 222113467. The reversal of 222113451 is 154311222.

It is not a de Polignac number, because 222113451 - 2⁶ = 222113387 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (222113051) 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, 36510 + ... + 42156.

It is an arithmetic number, because the mean of its divisors is an integer number (21168704).

Almost surely, 2^222113451 is an apocalyptic number.

222113451 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

222113451 is a deficient number, since it is larger than the sum of its proper divisors (116585813).

222113451 is a wasteful number, since it uses less digits than its factorization.

222113451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7530.

The product of its digits is 480, while the sum is 21.

The square root of 222113451 is about 14903.4711057525. The cubic root of 222113451 is about 605.6080229351.

Adding to 222113451 its reverse (154311222), we get a palindrome (376424673).

The spelling of 222113451 in words is "two hundred twenty-two million, one hundred thirteen thousand, four hundred fifty-one".