110101210110021 has 8 divisors (see below), whose sum is σ = 158094045286240. Its totient is φ = 67754590836912.

The previous prime is 110101210110019. The next prime is 110101210110103. The reversal of 110101210110021 is 120011012101011.

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

It is not a de Polignac number, because 110101210110021 - 2¹ = 110101210110019 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 110101210109979 and 110101210110006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (110101210110821) 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, 1411553975731 + ... + 1411553975808.

It is an arithmetic number, because the mean of its divisors is an integer number (19761755660780).

Almost surely, 2^{110101210110021} is an apocalyptic number.

It is an amenable number.

110101210110021 is a deficient number, since it is larger than the sum of its proper divisors (47992835176219).

110101210110021 is a wasteful number, since it uses less digits than its factorization.

110101210110021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2823107951555.

The product of its (nonzero) digits is 4, while the sum is 12.

Adding to 110101210110021 its reverse (120011012101011), we get a palindrome (230112222211032).

The spelling of 110101210110021 in words is "one hundred ten trillion, one hundred one billion, two hundred ten million, one hundred ten thousand, twenty-one".