900202222 has 4 divisors (see below), whose sum is σ = 1350303336. Its totient is φ = 450101110.

The previous prime is 900202187. The next prime is 900202223. The reversal of 900202222 is 222202009.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 222202009 = 641 ⋅346649.

It is a self number, because there is not a number n which added to its sum of digits gives 900202222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (900202223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 225050554 + ... + 225050557.

It is an arithmetic number, because the mean of its divisors is an integer number (337575834).

Almost surely, 2^900202222 is an apocalyptic number.

900202222 is a deficient number, since it is larger than the sum of its proper divisors (450101114).

900202222 is a wasteful number, since it uses less digits than its factorization.

900202222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 450101113.

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

The square root of 900202222 is about 30003.3701773651. The cubic root of 900202222 is about 965.5616914845.

The spelling of 900202222 in words is "nine hundred million, two hundred two thousand, two hundred twenty-two".