102001120221111 has 8 divisors (see below), whose sum is σ = 139677209672304. Its totient is φ = 66162888792000.

The previous prime is 102001120221109. The next prime is 102001120221163. The reversal of 102001120221111 is 111122021100201.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 102001120221111 - 2¹ = 102001120221109 is a prime.

It is a super-4 number, since 4×102001120221111⁴ (a number of 57 digits) contains 4444 as substring. Note that it is a super-d number also for d = 3.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102001120221191) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 459464505390 + ... + 459464505611.

It is an arithmetic number, because the mean of its divisors is an integer number (17459651209038).

Almost surely, 2^{102001120221111} is an apocalyptic number.

102001120221111 is a deficient number, since it is larger than the sum of its proper divisors (37676089451193).

102001120221111 is an equidigital number, since it uses as much as digits as its factorization.

102001120221111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 918929011041.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 102001120221111 its reverse (111122021100201), we get a palindrome (213123141321312).

The spelling of 102001120221111 in words is "one hundred two trillion, one billion, one hundred twenty million, two hundred twenty-one thousand, one hundred eleven".