10111221219999 has 16 divisors (see below), whose sum is σ = 14225851065600. Its totient is φ = 6375288803136.

The previous prime is 10111221219949. The next prime is 10111221220013. The reversal of 10111221219999 is 99991212211101.

It is not a de Polignac number, because 10111221219999 - 2¹² = 10111221215903 is a prime.

It is a super-3 number, since 3×10111221219999³ (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 (10111221219949) 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, 823249129 + ... + 823261410.

It is an arithmetic number, because the mean of its divisors is an integer number (889115691600).

Almost surely, 2^{10111221219999} is an apocalyptic number.

10111221219999 is a deficient number, since it is larger than the sum of its proper divisors (4114629845601).

10111221219999 is a wasteful number, since it uses less digits than its factorization.

10111221219999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1646510654.

The product of its (nonzero) digits is 52488, while the sum is 48.

The spelling of 10111221219999 in words is "ten trillion, one hundred eleven billion, two hundred twenty-one million, two hundred nineteen thousand, nine hundred ninety-nine".