1014221778 has 16 divisors (see below), whose sum is σ = 2035054560. Its totient is φ = 336972096.

The previous prime is 1014221773. The next prime is 1014221801. The reversal of 1014221778 is 8771224101.

It is not an unprimeable number, because it can be changed into a prime (1014221771) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 273463 + ... + 277146.

It is an arithmetic number, because the mean of its divisors is an integer number (127190910).

Almost surely, 2^1014221778 is an apocalyptic number.

1014221778 is an abundant number, since it is smaller than the sum of its proper divisors (1020832782).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1014221778 is a wasteful number, since it uses less digits than its factorization.

1014221778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 550921.

The product of its (nonzero) digits is 6272, while the sum is 33.

The square root of 1014221778 is about 31846.8487923060. The cubic root of 1014221778 is about 1004.7182953423.

Adding to 1014221778 its reverse (8771224101), we get a palindrome (9785445879).

The spelling of 1014221778 in words is "one billion, fourteen million, two hundred twenty-one thousand, seven hundred seventy-eight".