201210100121 has 8 divisors (see below), whose sum is σ = 208562585088. Its totient is φ = 193911480000.

The previous prime is 201210100087. The next prime is 201210100127. The reversal of 201210100121 is 121001012102.

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 201210100121 - 2⁶ = 201210100057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201210100127) 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, 13458605 + ... + 13473546.

It is an arithmetic number, because the mean of its divisors is an integer number (26070323136).

Almost surely, 2^201210100121 is an apocalyptic number.

It is an amenable number.

201210100121 is a deficient number, since it is larger than the sum of its proper divisors (7352484967).

201210100121 is a wasteful number, since it uses less digits than its factorization.

201210100121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26932423.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 201210100121 its reverse (121001012102), we get a palindrome (322211112223).

The spelling of 201210100121 in words is "two hundred one billion, two hundred ten million, one hundred thousand, one hundred twenty-one".