12200121220810 has 8 divisors (see below), whose sum is σ = 21960218197476. Its totient is φ = 4880048488320.

The previous prime is 12200121220799. The next prime is 12200121220811. The reversal of 12200121220810 is 1802212100221.

It can be written as a sum of positive squares in 2 ways, for example, as 11653572995289 + 546548225521 = 3413733^2 + 739289^2 .

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

It is a super-2 number, since 2×12200121220810² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12200121220811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 610006061031 + ... + 610006061050.

Almost surely, 2^{12200121220810} is an apocalyptic number.

12200121220810 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12200121220810 is a deficient number, since it is larger than the sum of its proper divisors (9760096976666).

12200121220810 is a wasteful number, since it uses less digits than its factorization.

12200121220810 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1220012122088.

The product of its (nonzero) digits is 256, while the sum is 22.

The spelling of 12200121220810 in words is "twelve trillion, two hundred billion, one hundred twenty-one million, two hundred twenty thousand, eight hundred ten".