201011122101 has 16 divisors (see below), whose sum is σ = 283901488704. Its totient is φ = 126070811904.

The previous prime is 201011122099. The next prime is 201011122139. The reversal of 201011122101 is 101221110102.

It is not a de Polignac number, because 201011122101 - 2¹ = 201011122099 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201011122141) 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, 719970 + ... + 959363.

It is an arithmetic number, because the mean of its divisors is an integer number (17743843044).

Almost surely, 2^201011122101 is an apocalyptic number.

It is an amenable number.

201011122101 is a deficient number, since it is larger than the sum of its proper divisors (82890366603).

201011122101 is a wasteful number, since it uses less digits than its factorization.

201011122101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1681700.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 201011122101 its reverse (101221110102), we get a palindrome (302232232203).

The spelling of 201011122101 in words is "two hundred one billion, eleven million, one hundred twenty-two thousand, one hundred one".