221001102112123 has 8 divisors (see below), whose sum is σ = 223243465482576. Its totient is φ = 218767152864000.

The previous prime is 221001102112121. The next prime is 221001102112177. The reversal of 221001102112123 is 321211201100122.

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

It is a cyclic number.

It is not a de Polignac number, because 221001102112123 - 2¹ = 221001102112121 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 221001102112123.

It is not an unprimeable number, because it can be changed into a prime (221001102112121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2103477786 + ... + 2103582847.

It is an arithmetic number, because the mean of its divisors is an integer number (27905433185322).

Almost surely, 2^{221001102112123} is an apocalyptic number.

221001102112123 is a deficient number, since it is larger than the sum of its proper divisors (2242363370453).

221001102112123 is a wasteful number, since it uses less digits than its factorization.

221001102112123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4207061165.

The product of its (nonzero) digits is 96, while the sum is 19.

Adding to 221001102112123 its reverse (321211201100122), we get a palindrome (542212303212245).

The spelling of 221001102112123 in words is "two hundred twenty-one trillion, one billion, one hundred two million, one hundred twelve thousand, one hundred twenty-three".