12021010212210 has 64 divisors (see below), whose sum is σ = 29246974629120. Its totient is φ = 3161545620480.

The previous prime is 12021010212203. The next prime is 12021010212221. The reversal of 12021010212210 is 1221201012021.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 12021010212210.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 52816555 + ... + 53043665.

It is an arithmetic number, because the mean of its divisors is an integer number (456983978580).

Almost surely, 2^{12021010212210} is an apocalyptic number.

12021010212210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12021010212210 is an abundant number, since it is smaller than the sum of its proper divisors (17225964416910).

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

12021010212210 is a wasteful number, since it uses less digits than its factorization.

12021010212210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 251363.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 12021010212210 its reverse (1221201012021), we get a palindrome (13242211224231).

The spelling of 12021010212210 in words is "twelve trillion, twenty-one billion, ten million, two hundred twelve thousand, two hundred ten".