12212122112010 has 48 divisors (see below), whose sum is σ = 31823191449504. Its totient is φ = 3249214721376.

The previous prime is 12212122111997. The next prime is 12212122112027. The reversal of 12212122112010 is 1021122121221.

12212122112010 is a `hidden beast` number, since 1 + 221 + 21 + 221 + 1 + 201 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 153109392 + ... + 153189131.

It is an arithmetic number, because the mean of its divisors is an integer number (662983155198).

Almost surely, 2^{12212122112010} is an apocalyptic number.

12212122112010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12212122112010 is an abundant number, since it is smaller than the sum of its proper divisors (19611069337494).

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

12212122112010 is a wasteful number, since it uses less digits than its factorization.

12212122112010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 306298979 (or 306298976 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 12212122112010 its reverse (1021122121221), we get a palindrome (13233244233231).

The spelling of 12212122112010 in words is "twelve trillion, two hundred twelve billion, one hundred twenty-two million, one hundred twelve thousand, ten".