21110120220003 has 8 divisors (see below), whose sum is σ = 28315370834688. Its totient is φ = 13989141542664.

The previous prime is 21110120219989. The next prime is 21110120220011. The reversal of 21110120220003 is 30002202101112.

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

It is not a de Polignac number, because 21110120220003 - 2³⁶ = 21041400743267 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21110120220043) 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, 21067983751 + ... + 21067984752.

It is an arithmetic number, because the mean of its divisors is an integer number (3539421354336).

Almost surely, 2^{21110120220003} is an apocalyptic number.

21110120220003 is a deficient number, since it is larger than the sum of its proper divisors (7205250614685).

21110120220003 is a wasteful number, since it uses less digits than its factorization.

21110120220003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42135968673.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 21110120220003 its reverse (30002202101112), we get a palindrome (51112322321115).

The spelling of 21110120220003 in words is "twenty-one trillion, one hundred ten billion, one hundred twenty million, two hundred twenty thousand, three".