999232212011 has 4 divisors (see below), whose sum is σ = 1090071504024. Its totient is φ = 908392920000.

The previous prime is 999232211993. The next prime is 999232212073. The reversal of 999232212011 is 110212232999.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 110212232999 = 11 ⋅10019293909.

It is a cyclic number.

It is not a de Polignac number, because 999232212011 - 2¹⁸ = 999231949867 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 999232212011.

It is not an unprimeable number, because it can be changed into a prime (999232212911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45419645990 + ... + 45419646011.

It is an arithmetic number, because the mean of its divisors is an integer number (272517876006).

Almost surely, 2^999232212011 is an apocalyptic number.

999232212011 is a deficient number, since it is larger than the sum of its proper divisors (90839292013).

999232212011 is a wasteful number, since it uses less digits than its factorization.

999232212011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90839292012.

The product of its (nonzero) digits is 34992, while the sum is 41.

The spelling of 999232212011 in words is "nine hundred ninety-nine billion, two hundred thirty-two million, two hundred twelve thousand, eleven".