110020020100021 has 16 divisors (see below), whose sum is σ = 111659938473600. Its totient is φ = 108391678694208.

The previous prime is 110020020100019. The next prime is 110020020100049. The reversal of 110020020100021 is 120001020020011.

It is a cyclic number.

It is not a de Polignac number, because 110020020100021 - 2¹ = 110020020100019 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 110020020099980 and 110020020100007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (110020020100051) 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, 216181360 + ... + 216689686.

It is an arithmetic number, because the mean of its divisors is an integer number (6978746154600).

Almost surely, 2^{110020020100021} is an apocalyptic number.

It is an amenable number.

110020020100021 is a deficient number, since it is larger than the sum of its proper divisors (1639918373579).

110020020100021 is a wasteful number, since it uses less digits than its factorization.

110020020100021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 519708.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 110020020100021 its reverse (120001020020011), we get a palindrome (230021040120032).

The spelling of 110020020100021 in words is "one hundred ten trillion, twenty billion, twenty million, one hundred thousand, twenty-one".