12212122021110 has 48 divisors (see below), whose sum is σ = 34638018826320. Its totient is φ = 2960514429120.

The previous prime is 12212122021093. The next prime is 12212122021153. The reversal of 12212122021110 is 1112022121221.

12212122021110 is a `hidden beast` number, since 1 + 221 + 2 + 1 + 220 + 211 + 10 = 666.

It is a super-3 number, since 3×12212122021110³ (a number of 40 digits) contains 333 as substring.

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

It is a Curzon number.

It is a congruent 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, 6167737405 + ... + 6167739384.

It is an arithmetic number, because the mean of its divisors is an integer number (721625392215).

Almost surely, 2^{12212122021110} is an apocalyptic number.

12212122021110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12212122021110 is an abundant number, since it is smaller than the sum of its proper divisors (22425896805210).

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

12212122021110 is a wasteful number, since it uses less digits than its factorization.

12212122021110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12335476813 (or 12335476810 counting only the distinct ones).

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

Adding to 12212122021110 its reverse (1112022121221), we get a palindrome (13324144142331).

The spelling of 12212122021110 in words is "twelve trillion, two hundred twelve billion, one hundred twenty-two million, twenty-one thousand, one hundred ten".