12221121123100 has 18 divisors (see below), whose sum is σ = 26519832837344. Its totient is φ = 4888448449200.

The previous prime is 12221121123083. The next prime is 12221121123143. The reversal of 12221121123100 is 132112112221.

It is a super-2 number, since 2×12221121123100² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

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 5 ways as a sum of consecutive naturals, for example, 61105605516 + ... + 61105605715.

Almost surely, 2^{12221121123100} is an apocalyptic number.

12221121123100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12221121123100 is an abundant number, since it is smaller than the sum of its proper divisors (14298711714244).

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

12221121123100 is a wasteful number, since it uses less digits than its factorization.

12221121123100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122211211245 (or 122211211238 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 19.

Adding to 12221121123100 its reverse (132112112221), we get a palindrome (12353233235321).

The spelling of 12221121123100 in words is "twelve trillion, two hundred twenty-one billion, one hundred twenty-one million, one hundred twenty-three thousand, one hundred".