12019720110 has 16 divisors (see below), whose sum is σ = 28847328336. Its totient is φ = 3205258688.

The previous prime is 12019720109. The next prime is 12019720129. The reversal of 12019720110 is 1102791021.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 200328639 + ... + 200328698.

It is an arithmetic number, because the mean of its divisors is an integer number (1802958021).

Almost surely, 2^12019720110 is an apocalyptic number.

12019720110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12019720110 is an abundant number, since it is smaller than the sum of its proper divisors (16827608226).

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

12019720110 is a wasteful number, since it uses less digits than its factorization.

12019720110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 400657347.

The product of its (nonzero) digits is 252, while the sum is 24.

The spelling of 12019720110 in words is "twelve billion, nineteen million, seven hundred twenty thousand, one hundred ten".