12222212100100 has 36 divisors (see below), whose sum is σ = 27138995621584. Its totient is φ = 4775189842080.

The previous prime is 12222212100079. The next prime is 12222212100113. The reversal of 12222212100100 is 100121222221.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1421183154 + ... + 1421191753.

Almost surely, 2^{12222212100100} is an apocalyptic number.

12222212100100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12222212100100 is an abundant number, since it is smaller than the sum of its proper divisors (14916783521484).

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

12222212100100 is a wasteful number, since it uses less digits than its factorization.

12222212100100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2842374964 (or 2842374957 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 12222212100100 its reverse (100121222221), we get a palindrome (12322333322321).

The spelling of 12222212100100 in words is "twelve trillion, two hundred twenty-two billion, two hundred twelve million, one hundred thousand, one hundred".