201223778 has 8 divisors (see below), whose sum is σ = 344955072. Its totient is φ = 86238756.

The previous prime is 201223769. The next prime is 201223793. The reversal of 201223778 is 877322102.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7186550 + ... + 7186577.

It is an arithmetic number, because the mean of its divisors is an integer number (43119384).

Almost surely, 2^201223778 is an apocalyptic number.

201223778 is a deficient number, since it is larger than the sum of its proper divisors (143731294).

201223778 is a wasteful number, since it uses less digits than its factorization.

201223778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14373136.

The product of its (nonzero) digits is 9408, while the sum is 32.

The square root of 201223778 is about 14185.3367249424. The cubic root of 201223778 is about 585.9939059033.

The spelling of 201223778 in words is "two hundred one million, two hundred twenty-three thousand, seven hundred seventy-eight".