12212122022100 has 432 divisors, whose sum is σ = 51394534289280. Its totient is φ = 2342384870400.

The previous prime is 12212122022083. The next prime is 12212122022117. The reversal of 12212122022100 is 122022121221.

It is a happy number.

12212122022100 is a `hidden beast` number, since 1 + 221 + 2 + 1 + 220 + 221 + 0 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (12212122022083) and next prime (12212122022117).

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

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 143 ways as a sum of consecutive naturals, for example, 5876835 + ... + 7678634.

Almost surely, 2^{12212122022100} is an apocalyptic number.

12212122022100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12212122022100 is an abundant number, since it is smaller than the sum of its proper divisors (39182412267180).

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

12212122022100 is a wasteful number, since it uses less digits than its factorization.

12212122022100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13555520 (or 13555510 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 12212122022100 its reverse (122022121221), we get a palindrome (12334144143321).

The spelling of 12212122022100 in words is "twelve trillion, two hundred twelve billion, one hundred twenty-two million, twenty-two thousand, one hundred".