202222090 has 16 divisors (see below), whose sum is σ = 415999872. Its totient is φ = 69333264.

The previous prime is 202222081. The next prime is 202222091. The reversal of 202222090 is 90222202.

It is not an unprimeable number, because it can be changed into a prime (202222091) 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 7 ways as a sum of consecutive naturals, for example, 1444374 + ... + 1444513.

It is an arithmetic number, because the mean of its divisors is an integer number (25999992).

Almost surely, 2^202222090 is an apocalyptic number.

202222090 is an abundant number, since it is smaller than the sum of its proper divisors (213777782).

202222090 is a wasteful number, since it uses less digits than its factorization.

202222090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2888901.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 202222090 is about 14220.4813561286. The cubic root of 202222090 is about 586.9613859385.

Adding to 202222090 its reverse (90222202), we get a palindrome (292444292).

The spelling of 202222090 in words is "two hundred two million, two hundred twenty-two thousand, ninety".