1011200099 has 16 divisors (see below), whose sum is σ = 1245420288. Its totient is φ = 799513632.

The previous prime is 1011200087. The next prime is 1011200117. The reversal of 1011200099 is 9900021101.

It is a cyclic number.

It is not a de Polignac number, because 1011200099 - 2¹⁶ = 1011134563 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1011200899) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 170624 + ... + 176450.

It is an arithmetic number, because the mean of its divisors is an integer number (77838768).

Almost surely, 2^1011200099 is an apocalyptic number.

1011200099 is a deficient number, since it is larger than the sum of its proper divisors (234220189).

1011200099 is a wasteful number, since it uses less digits than its factorization.

1011200099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7754.

The product of its (nonzero) digits is 162, while the sum is 23.

The square root of 1011200099 is about 31799.3726195974. The cubic root of 1011200099 is about 1003.7195143931.

The spelling of 1011200099 in words is "one billion, eleven million, two hundred thousand, ninety-nine".