100121222101 has 8 divisors (see below), whose sum is σ = 106712766144. Its totient is φ = 93607684800.

The previous prime is 100121222093. The next prime is 100121222141. The reversal of 100121222101 is 101222121001.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 100121222101 - 2³ = 100121222093 is a prime.

It is a super-2 number, since 2×100121222101² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100121222141) 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, 19499035 + ... + 19504168.

It is an arithmetic number, because the mean of its divisors is an integer number (13339095768).

Almost surely, 2^100121222101 is an apocalyptic number.

It is an amenable number.

100121222101 is a deficient number, since it is larger than the sum of its proper divisors (6591544043).

100121222101 is a wasteful number, since it uses less digits than its factorization.

100121222101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39003371.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 100121222101 its reverse (101222121001), we get a palindrome (201343343102).

The spelling of 100121222101 in words is "one hundred billion, one hundred twenty-one million, two hundred twenty-two thousand, one hundred one".