110110021021 has 32 divisors (see below), whose sum is σ = 147871180800. Its totient is φ = 79183327680.

The previous prime is 110110020973. The next prime is 110110021027. The reversal of 110110021021 is 120120011011.

It is a cyclic number.

It is not a de Polignac number, because 110110021021 - 2¹⁵ = 110109988253 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 110110020989 and 110110021007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (110110021027) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6657400 + ... + 6673918.

It is an arithmetic number, because the mean of its divisors is an integer number (4620974400).

Almost surely, 2^110110021021 is an apocalyptic number.

110110021021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

110110021021 is a deficient number, since it is larger than the sum of its proper divisors (37761159779).

110110021021 is a wasteful number, since it uses less digits than its factorization.

110110021021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23209.

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 110110021021 its reverse (120120011011), we get a palindrome (230230032032).

The spelling of 110110021021 in words is "one hundred ten billion, one hundred ten million, twenty-one thousand, twenty-one".