20210101110 has 24 divisors (see below), whose sum is σ = 52546263120. Its totient is φ = 5389360272.

The previous prime is 20210101091. The next prime is 20210101141. The reversal of 20210101110 is 1110101202.

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 = 20210101092 and 20210101101.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 112278250 + ... + 112278429.

It is an arithmetic number, because the mean of its divisors is an integer number (2189427630).

Almost surely, 2^20210101110 is an apocalyptic number.

20210101110 is an abundant number, since it is smaller than the sum of its proper divisors (32336162010).

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

20210101110 is a wasteful number, since it uses less digits than its factorization.

20210101110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224556692 (or 224556689 counting only the distinct ones).

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

Adding to 20210101110 its reverse (1110101202), we get a palindrome (21320202312).

The spelling of 20210101110 in words is "twenty billion, two hundred ten million, one hundred one thousand, one hundred ten".