45220222 has 8 divisors (see below), whose sum is σ = 70169400. Its totient is φ = 21830424.

The previous prime is 45220213. The next prime is 45220223. The reversal of 45220222 is 22202254.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 45220222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45220223) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 389772 + ... + 389887.

It is an arithmetic number, because the mean of its divisors is an integer number (8771175).

Almost surely, 2^45220222 is an apocalyptic number.

45220222 is a deficient number, since it is larger than the sum of its proper divisors (24949178).

45220222 is a wasteful number, since it uses less digits than its factorization.

45220222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 779690.

The product of its (nonzero) digits is 640, while the sum is 19.

The square root of 45220222 is about 6724.5982779643. The cubic root of 45220222 is about 356.2686132883.

Adding to 45220222 its reverse (22202254), we get a palindrome (67422476).

The spelling of 45220222 in words is "forty-five million, two hundred twenty thousand, two hundred twenty-two".