12221101210212 has 48 divisors (see below), whose sum is σ = 31749396846720. Its totient is φ = 4065335498016.

The previous prime is 12221101210187. The next prime is 12221101210237. The reversal of 12221101210212 is 21201210112221.

12221101210212 is a `hidden beast` number, since 1 + 222 + 110 + 121 + 0 + 212 = 666.

It is an interprime number because it is at equal distance from previous prime (12221101210187) and next prime (12221101210237).

It is a super-2 number, since 2×12221101210212² (a number of 27 digits) contains 22 as substring.

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

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 15 ways as a sum of consecutive naturals, for example, 116126403 + ... + 116231594.

It is an arithmetic number, because the mean of its divisors is an integer number (661445767640).

Almost surely, 2^{12221101210212} is an apocalyptic number.

12221101210212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12221101210212 is an abundant number, since it is smaller than the sum of its proper divisors (19528295636508).

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

12221101210212 is a wasteful number, since it uses less digits than its factorization.

12221101210212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 232358497 (or 232358489 counting only the distinct ones).

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

Adding to 12221101210212 its reverse (21201210112221), we get a palindrome (33422311322433).

The spelling of 12221101210212 in words is "twelve trillion, two hundred twenty-one billion, one hundred one million, two hundred ten thousand, two hundred twelve".