11211200011999 has 32 divisors (see below), whose sum is σ = 12921717122496. Its totient is φ = 9635071426560.

The previous prime is 11211200011993. The next prime is 11211200012039. The reversal of 11211200011999 is 99911000211211.

It is a cyclic number.

It is not a de Polignac number, because 11211200011999 - 2¹³ = 11211200003807 is a prime.

It is a super-3 number, since 3×11211200011999³ (a number of 40 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11211200011993) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 45559539 + ... + 45804955.

It is an arithmetic number, because the mean of its divisors is an integer number (403803660078).

Almost surely, 2^{11211200011999} is an apocalyptic number.

11211200011999 is a deficient number, since it is larger than the sum of its proper divisors (1710517110497).

11211200011999 is a wasteful number, since it uses less digits than its factorization.

11211200011999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 247675.

The product of its (nonzero) digits is 2916, while the sum is 37.

The spelling of 11211200011999 in words is "eleven trillion, two hundred eleven billion, two hundred million, eleven thousand, nine hundred ninety-nine".