2221011112 has 8 divisors (see below), whose sum is σ = 4164395850. Its totient is φ = 1110505552.

The previous prime is 2221011101. The next prime is 2221011157. The reversal of 2221011112 is 2111101222.

It can be written as a sum of positive squares in only one way, i.e., 2054446276 + 166564836 = 45326^2 + 12906^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 2221011092 and 2221011101.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 138813187 + ... + 138813202.

Almost surely, 2^2221011112 is an apocalyptic number.

It is an amenable number.

2221011112 is a deficient number, since it is larger than the sum of its proper divisors (1943384738).

2221011112 is a wasteful number, since it uses less digits than its factorization.

2221011112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 277626395 (or 277626391 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

The square root of 2221011112 is about 47127.6045646286. The cubic root of 2221011112 is about 1304.7187704985.

Adding to 2221011112 its reverse (2111101222), we get a palindrome (4332112334).

The spelling of 2221011112 in words is "two billion, two hundred twenty-one million, eleven thousand, one hundred twelve".