20121000110 has 32 divisors (see below), whose sum is σ = 37816904160. Its totient is φ = 7698232192.

The previous prime is 20121000103. The next prime is 20121000113. The reversal of 20121000110 is 1100012102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20121000113) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 293189 + ... + 355248.

It is an arithmetic number, because the mean of its divisors is an integer number (1181778255).

Almost surely, 2^20121000110 is an apocalyptic number.

20121000110 is a deficient number, since it is larger than the sum of its proper divisors (17695904050).

20121000110 is a wasteful number, since it uses less digits than its factorization.

20121000110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 648580.

The product of its (nonzero) digits is 4, while the sum is 8.

Adding to 20121000110 its reverse (1100012102), we get a palindrome (21221012212).

The spelling of 20121000110 in words is "twenty billion, one hundred twenty-one million, one hundred ten", and thus it is an aban number.