100121220211122 has 96 divisors (see below), whose sum is σ = 237250377000000. Its totient is φ = 30262877061120.

The previous prime is 100121220211073. The next prime is 100121220211163. The reversal of 100121220211122 is 221112022121001.

100121220211122 is a `hidden beast` number, since 100 + 1 + 212 + 20 + 211 + 122 = 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 = 100121220211095 and 100121220211104.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 186368754 + ... + 186905202.

It is an arithmetic number, because the mean of its divisors is an integer number (2471358093750).

Almost surely, 2^{100121220211122} is an apocalyptic number.

100121220211122 is an abundant number, since it is smaller than the sum of its proper divisors (137129156788878).

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

100121220211122 is a wasteful number, since it uses less digits than its factorization.

100121220211122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 538856 (or 538853 counting only the distinct ones).

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

Adding to 100121220211122 its reverse (221112022121001), we get a palindrome (321233242332123).

The spelling of 100121220211122 in words is "one hundred trillion, one hundred twenty-one billion, two hundred twenty million, two hundred eleven thousand, one hundred twenty-two".