110001001721398 has 4 divisors (see below), whose sum is σ = 165001502582100. Its totient is φ = 55000500860698.

The previous prime is 110001001721383. The next prime is 110001001721399. The reversal of 110001001721398 is 893127100100011.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×110001001721398² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (110001001721399) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27500250430348 + ... + 27500250430351.

It is an arithmetic number, because the mean of its divisors is an integer number (41250375645525).

Almost surely, 2^{110001001721398} is an apocalyptic number.

110001001721398 is a deficient number, since it is larger than the sum of its proper divisors (55000500860702).

110001001721398 is an equidigital number, since it uses as much as digits as its factorization.

110001001721398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55000500860701.

The product of its (nonzero) digits is 3024, while the sum is 34.

The spelling of 110001001721398 in words is "one hundred ten trillion, one billion, one million, seven hundred twenty-one thousand, three hundred ninety-eight".