100121202205 has 8 divisors (see below), whose sum is σ = 120147633504. Its totient is φ = 80095501200.

The previous prime is 100121202197. The next prime is 100121202217. The reversal of 100121202205 is 502202121001.

It is a happy number.

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

It is not a de Polignac number, because 100121202205 - 2³ = 100121202197 is a prime.

It is a Duffinian number.

It is a congruent number.

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, 187090 + ... + 485020.

It is an arithmetic number, because the mean of its divisors is an integer number (15018454188).

Almost surely, 2^100121202205 is an apocalyptic number.

It is an amenable number.

100121202205 is a deficient number, since it is larger than the sum of its proper divisors (20026431299).

100121202205 is an equidigital number, since it uses as much as digits as its factorization.

100121202205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 365147.

The product of its (nonzero) digits is 80, while the sum is 16.

Adding to 100121202205 its reverse (502202121001), we get a palindrome (602323323206).

The spelling of 100121202205 in words is "one hundred billion, one hundred twenty-one million, two hundred two thousand, two hundred five".