110220011000021 has 8 divisors (see below), whose sum is σ = 120938067222840. Its totient is φ = 99821896754112.

The previous prime is 110220011000009. The next prime is 110220011000027. The reversal of 110220011000021 is 120000110022011.

It can be written as a sum of positive squares in 4 ways, for example, as 14822577000100 + 95397433999921 = 3850010^2 + 9767161^2 .

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

It is a de Polignac number, because none of the positive numbers 2^k-110220011000021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 110220010999966 and 110220011000011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (110220011000027) 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, 79985493506 + ... + 79985494883.

It is an arithmetic number, because the mean of its divisors is an integer number (15117258402855).

Almost surely, 2^{110220011000021} is an apocalyptic number.

It is an amenable number.

110220011000021 is a deficient number, since it is larger than the sum of its proper divisors (10718056222819).

110220011000021 is a wasteful number, since it uses less digits than its factorization.

110220011000021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159970988455.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 110220011000021 its reverse (120000110022011), we get a palindrome (230220121022032).

The spelling of 110220011000021 in words is "one hundred ten trillion, two hundred twenty billion, eleven million, twenty-one", and thus it is an aban number.