100121203101 has 16 divisors (see below), whose sum is σ = 139620813696. Its totient is φ = 63697936896.

The previous prime is 100121203097. The next prime is 100121203109. The reversal of 100121203101 is 101302121001.

It is not a de Polignac number, because 100121203101 - 2² = 100121203097 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100121203109) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1645680 + ... + 1705433.

It is an arithmetic number, because the mean of its divisors is an integer number (8726300856).

Almost surely, 2^100121203101 is an apocalyptic number.

It is an amenable number.

100121203101 is a deficient number, since it is larger than the sum of its proper divisors (39499610595).

100121203101 is a wasteful number, since it uses less digits than its factorization.

100121203101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3351572.

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

Adding to 100121203101 its reverse (101302121001), we get a palindrome (201423324102).

The spelling of 100121203101 in words is "one hundred billion, one hundred twenty-one million, two hundred three thousand, one hundred one".