100121222122 has 16 divisors (see below), whose sum is σ = 156741532992. Its totient is φ = 47874879360.

The previous prime is 100121222093. The next prime is 100121222141. The reversal of 100121222122 is 221222121001.

It is a happy number.

100121222122 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 100121222096 and 100121222105.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36853 + ... + 448999.

It is an arithmetic number, because the mean of its divisors is an integer number (9796345812).

Almost surely, 2^100121222122 is an apocalyptic number.

100121222122 is a deficient number, since it is larger than the sum of its proper divisors (56620310870).

100121222122 is a wasteful number, since it uses less digits than its factorization.

100121222122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 417453.

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

Adding to 100121222122 its reverse (221222121001), we get a palindrome (321343343123).

The spelling of 100121222122 in words is "one hundred billion, one hundred twenty-one million, two hundred twenty-two thousand, one hundred twenty-two".