201122101021 has 8 divisors (see below), whose sum is σ = 203397312384. Its totient is φ = 198858588000.

The previous prime is 201122100997. The next prime is 201122101073. The reversal of 201122101021 is 120101221102.

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 201122101021 - 2⁵ = 201122100989 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 201122100992 and 201122101010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201122101321) 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, 2890005 + ... + 2958778.

It is an arithmetic number, because the mean of its divisors is an integer number (25424664048).

Almost surely, 2^201122101021 is an apocalyptic number.

It is an amenable number.

201122101021 is a deficient number, since it is larger than the sum of its proper divisors (2275211363).

201122101021 is a wasteful number, since it uses less digits than its factorization.

201122101021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5849171.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 201122101021 its reverse (120101221102), we get a palindrome (321223322123).

The spelling of 201122101021 in words is "two hundred one billion, one hundred twenty-two million, one hundred one thousand, twenty-one".