210121010111101 has 8 divisors (see below), whose sum is σ = 219270969025920. Its totient is φ = 200972239764912.

The previous prime is 210121010111093. The next prime is 210121010111143. The reversal of 210121010111101 is 101111010121012.

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 210121010111101 - 2³ = 210121010111093 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210121010114101) 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, 296780881 + ... + 297488038.

It is an arithmetic number, because the mean of its divisors is an integer number (27408871128240).

Almost surely, 2^{210121010111101} is an apocalyptic number.

It is an amenable number.

210121010111101 is a deficient number, since it is larger than the sum of its proper divisors (9149958914819).

210121010111101 is a wasteful number, since it uses less digits than its factorization.

210121010111101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 594284315.

The product of its (nonzero) digits is 4, while the sum is 13.

Adding to 210121010111101 its reverse (101111010121012), we get a palindrome (311232020232113).

The spelling of 210121010111101 in words is "two hundred ten trillion, one hundred twenty-one billion, ten million, one hundred eleven thousand, one hundred one".