72222010 has 32 divisors (see below), whose sum is σ = 148936320. Its totient is φ = 24700992.

The previous prime is 72221953. The next prime is 72222011. The reversal of 72222010 is 1022227.

It is not an unprimeable number, because it can be changed into a prime (72222011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34617 + ... + 36643.

It is an arithmetic number, because the mean of its divisors is an integer number (4654260).

Almost surely, 2^72222010 is an apocalyptic number.

72222010 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

72222010 is an abundant number, since it is smaller than the sum of its proper divisors (76714310).

72222010 is a wasteful number, since it uses less digits than its factorization.

72222010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2550.

The product of its (nonzero) digits is 112, while the sum is 16.

The square root of 72222010 is about 8498.3533699182. The cubic root of 72222010 is about 416.4439179182.

Adding to 72222010 its reverse (1022227), we get a palindrome (73244237).

The spelling of 72222010 in words is "seventy-two million, two hundred twenty-two thousand, ten".