110021101020 has 72 divisors (see below), whose sum is σ = 333764776800. Its totient is φ = 29335962240.

The previous prime is 110021100989. The next prime is 110021101031. The reversal of 110021101020 is 20101120011.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 110021100993 and 110021101011.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2161665 + ... + 2211975.

It is an arithmetic number, because the mean of its divisors is an integer number (4635621900).

Almost surely, 2^110021101020 is an apocalyptic number.

110021101020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

110021101020 is an abundant number, since it is smaller than the sum of its proper divisors (223743675780).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

110021101020 is a wasteful number, since it uses less digits than its factorization.

110021101020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62475 (or 62470 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 110021101020 its reverse (20101120011), we get a palindrome (130122221031).

The spelling of 110021101020 in words is "one hundred ten billion, twenty-one million, one hundred one thousand, twenty".