12211121220010 has 16 divisors (see below), whose sum is σ = 21980058652800. Its totient is φ = 4884439497616.

The previous prime is 12211121219951. The next prime is 12211121220019. The reversal of 12211121220010 is 1002212111221.

It is a super-2 number, since 2×12211121220010² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12211121220019) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8529051 + ... + 9857329.

It is an arithmetic number, because the mean of its divisors is an integer number (1373753665800).

Almost surely, 2^{12211121220010} is an apocalyptic number.

12211121220010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12211121220010 is a deficient number, since it is larger than the sum of its proper divisors (9768937432790).

12211121220010 is a wasteful number, since it uses less digits than its factorization.

12211121220010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2247605.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 12211121220010 its reverse (1002212111221), we get a palindrome (13213333331231).

The spelling of 12211121220010 in words is "twelve trillion, two hundred eleven billion, one hundred twenty-one million, two hundred twenty thousand, ten".