100120211121222 has 24 divisors (see below), whose sum is σ = 219074917407840. Its totient is φ = 33042973966800.

The previous prime is 100120211121209. The next prime is 100120211121223. The reversal of 100120211121222 is 222121112021001.

100120211121222 is a `hidden beast` number, since 100 + 12 + 0 + 211 + 121 + 222 = 666.

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

It is a junction number, because it is equal to n+sod(n) for n = 100120211121195 and 100120211121204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100120211121223) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 27535809822 + ... + 27535813457.

It is an arithmetic number, because the mean of its divisors is an integer number (9128121558660).

Almost surely, 2^{100120211121222} is an apocalyptic number.

100120211121222 is an abundant number, since it is smaller than the sum of its proper divisors (118954706286618).

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

100120211121222 is a wasteful number, since it uses less digits than its factorization.

100120211121222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55071623388 (or 55071623385 counting only the distinct ones).

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

Adding to 100120211121222 its reverse (222121112021001), we get a palindrome (322241323142223).

The spelling of 100120211121222 in words is "one hundred trillion, one hundred twenty billion, two hundred eleven million, one hundred twenty-one thousand, two hundred twenty-two".