121010100101 has 8 divisors (see below), whose sum is σ = 133682044800. Its totient is φ = 108616659840.

The previous prime is 121010100091. The next prime is 121010100157. The reversal of 121010100101 is 101001010121.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 121010100101 - 2¹⁴ = 121010083717 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121010160101) 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, 69625196 + ... + 69626933.

It is an arithmetic number, because the mean of its divisors is an integer number (16710255600).

Almost surely, 2^121010100101 is an apocalyptic number.

121010100101 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

121010100101 is a deficient number, since it is larger than the sum of its proper divisors (12671944699).

121010100101 is a wasteful number, since it uses less digits than its factorization.

121010100101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139252219.

The product of its (nonzero) digits is 2, while the sum is 8.

Adding to 121010100101 its reverse (101001010121), we get a palindrome (222011110222).

The spelling of 121010100101 in words is "one hundred twenty-one billion, ten million, one hundred thousand, one hundred one".