100121000022 has 16 divisors (see below), whose sum is σ = 222491111280. Its totient is φ = 33373666656.

The previous prime is 100120999991. The next prime is 100121000029. The reversal of 100121000022 is 220000121001.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 100120999968 and 100121000013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100121000029) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 927046243 + ... + 927046350.

It is an arithmetic number, because the mean of its divisors is an integer number (13905694455).

Almost surely, 2^100121000022 is an apocalyptic number.

100121000022 is an abundant number, since it is smaller than the sum of its proper divisors (122370111258).

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

100121000022 is a wasteful number, since it uses less digits than its factorization.

100121000022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1854092604 (or 1854092598 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 100121000022 its reverse (220000121001), we get a palindrome (320121121023).

The spelling of 100121000022 in words is "one hundred billion, one hundred twenty-one million, twenty-two", and thus it is an aban number.