100121100222 has 256 divisors, whose sum is σ = 250153795584. Its totient is φ = 26283840000.

The previous prime is 100121100217. The next prime is 100121100341. The reversal of 100121100222 is 222001121001.

It is a junction number, because it is equal to n+sod(n) for n = 100121100198 and 100121100207.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 380688463 + ... + 380688725.

It is an arithmetic number, because the mean of its divisors is an integer number (977163264).

Almost surely, 2^100121100222 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 100121100222, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (125076897792).

100121100222 is an abundant number, since it is smaller than the sum of its proper divisors (150032695362).

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

100121100222 is a wasteful number, since it uses less digits than its factorization.

100121100222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 607.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 100121100222 its reverse (222001121001), we get a palindrome (322122221223).

The spelling of 100121100222 in words is "one hundred billion, one hundred twenty-one million, one hundred thousand, two hundred twenty-two".