11211202221999 has 32 divisors (see below), whose sum is σ = 17085573296064. Its totient is φ = 6477942159360.

The previous prime is 11211202221971. The next prime is 11211202222049. The reversal of 11211202221999 is 99912220211211.

It is not a de Polignac number, because 11211202221999 - 2⁹ = 11211202221487 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11211202221999.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11211202221929) 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, 19803784 + ... + 20362029.

It is an arithmetic number, because the mean of its divisors is an integer number (533924165502).

Almost surely, 2^{11211202221999} is an apocalyptic number.

11211202221999 is a deficient number, since it is larger than the sum of its proper divisors (5874371074065).

11211202221999 is a wasteful number, since it uses less digits than its factorization.

11211202221999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40166267.

The product of its (nonzero) digits is 23328, while the sum is 42.

The spelling of 11211202221999 in words is "eleven trillion, two hundred eleven billion, two hundred two million, two hundred twenty-one thousand, nine hundred ninety-nine".