201000212122101 has 24 divisors (see below), whose sum is σ = 312968487257280. Its totient is φ = 114410348623872.

The previous prime is 201000212122091. The next prime is 201000212122169. The reversal of 201000212122101 is 101221212000102.

It is not a de Polignac number, because 201000212122101 - 2⁶ = 201000212122037 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201000212122901) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2660173081 + ... + 2660248638.

It is an arithmetic number, because the mean of its divisors is an integer number (13040353635720).

Almost surely, 2^{201000212122101} is an apocalyptic number.

201000212122101 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

201000212122101 is a deficient number, since it is larger than the sum of its proper divisors (111968275135179).

201000212122101 is a wasteful number, since it uses less digits than its factorization.

201000212122101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5320421993 (or 5320421986 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 201000212122101 its reverse (101221212000102), we get a palindrome (302221424122203).

The spelling of 201000212122101 in words is "two hundred one trillion, two hundred twelve million, one hundred twenty-two thousand, one hundred one".