201099112 has 8 divisors (see below), whose sum is σ = 377060850. Its totient is φ = 100549552.

The previous prime is 201099091. The next prime is 201099121. The reversal of 201099112 is 211990102.

It can be written as a sum of positive squares in only one way, i.e., 133957476 + 67141636 = 11574^2 + 8194^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12568687 + ... + 12568702.

Almost surely, 2^201099112 is an apocalyptic number.

It is an amenable number.

201099112 is a deficient number, since it is larger than the sum of its proper divisors (175961738).

201099112 is a wasteful number, since it uses less digits than its factorization.

201099112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25137395 (or 25137391 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 25.

The square root of 201099112 is about 14180.9418587060. The cubic root of 201099112 is about 585.8728655228.

The spelling of 201099112 in words is "two hundred one million, ninety-nine thousand, one hundred twelve".