222472901 has 4 divisors (see below), whose sum is σ = 254254752. Its totient is φ = 190691052.

The previous prime is 222472879. The next prime is 222472963. The reversal of 222472901 is 109274222.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-222472901 is a prime.

It is a super-3 number, since 3×222472901³ (a number of 26 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222471901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15890915 + ... + 15890928.

It is an arithmetic number, because the mean of its divisors is an integer number (63563688).

Almost surely, 2^222472901 is an apocalyptic number.

It is an amenable number.

222472901 is a deficient number, since it is larger than the sum of its proper divisors (31781851).

222472901 is an equidigital number, since it uses as much as digits as its factorization.

222472901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31781850.

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 222472901 is about 14915.5255019728. The cubic root of 222472901 is about 605.9345354750.

The spelling of 222472901 in words is "two hundred twenty-two million, four hundred seventy-two thousand, nine hundred one".