1992200111 has 4 divisors (see below), whose sum is σ = 2173309224. Its totient is φ = 1811091000.

The previous prime is 1992200071. The next prime is 1992200137. The reversal of 1992200111 is 1110022991.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1992200111 - 2²⁶ = 1925091247 is a prime.

It is a super-2 number, since 2×1992200111² = 7937722564536824642, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1992208111) 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, 90554540 + ... + 90554561.

It is an arithmetic number, because the mean of its divisors is an integer number (543327306).

Almost surely, 2^1992200111 is an apocalyptic number.

1992200111 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1992200111 is a deficient number, since it is larger than the sum of its proper divisors (181109113).

1992200111 is a wasteful number, since it uses less digits than its factorization.

1992200111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181109112.

The product of its (nonzero) digits is 324, while the sum is 26.

The square root of 1992200111 is about 44634.0689496264. The cubic root of 1992200111 is about 1258.2810420073.

The spelling of 1992200111 in words is "one billion, nine hundred ninety-two million, two hundred thousand, one hundred eleven".