222951530 has 16 divisors (see below), whose sum is σ = 402092424. Its totient is φ = 89007360.

The previous prime is 222951511. The next prime is 222951551. The reversal of 222951530 is 35159222.

It can be written as a sum of positive squares in 4 ways, for example, as 159542161 + 63409369 = 12631^2 + 7963^2 .

It is a junction number, because it is equal to n+sod(n) for n = 222951493 and 222951502.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16187 + ... + 26606.

Almost surely, 2^222951530 is an apocalyptic number.

222951530 is a deficient number, since it is larger than the sum of its proper divisors (179140894).

222951530 is a wasteful number, since it uses less digits than its factorization.

222951530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43321.

The product of its (nonzero) digits is 5400, while the sum is 29.

The square root of 222951530 is about 14931.5615392363. The cubic root of 222951530 is about 606.3687608059.

The spelling of 222951530 in words is "two hundred twenty-two million, nine hundred fifty-one thousand, five hundred thirty".