11227778890 has 8 divisors (see below), whose sum is σ = 20210002020. Its totient is φ = 4491111552.

The previous prime is 11227778879. The next prime is 11227778897. The reversal of 11227778890 is 9887772211.

It can be written as a sum of positive squares in 2 ways, for example, as 11227733521 + 45369 = 105961^2 + 213^2 .

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

It is not an unprimeable number, because it can be changed into a prime (11227778897) 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, 561388935 + ... + 561388954.

Almost surely, 2^11227778890 is an apocalyptic number.

11227778890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11227778890 is a deficient number, since it is larger than the sum of its proper divisors (8982223130).

11227778890 is a wasteful number, since it uses less digits than its factorization.

11227778890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1122777896.

The product of its (nonzero) digits is 790272, while the sum is 52.

The spelling of 11227778890 in words is "eleven billion, two hundred twenty-seven million, seven hundred seventy-eight thousand, eight hundred ninety".