101200211121 has 4 divisors (see below), whose sum is σ = 134933614832. Its totient is φ = 67466807412.

The previous prime is 101200211069. The next prime is 101200211173. The reversal of 101200211121 is 121112002101.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (101200211069) and next prime (101200211173).

It is not a de Polignac number, because 101200211121 - 2¹⁷ = 101200080049 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 101200211097 and 101200211106.

It is not an unprimeable number, because it can be changed into a prime (101200211221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16866701851 + ... + 16866701856.

It is an arithmetic number, because the mean of its divisors is an integer number (33733403708).

Almost surely, 2^101200211121 is an apocalyptic number.

It is an amenable number.

101200211121 is a deficient number, since it is larger than the sum of its proper divisors (33733403711).

101200211121 is an equidigital number, since it uses as much as digits as its factorization.

101200211121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33733403710.

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

Adding to 101200211121 its reverse (121112002101), we get a palindrome (222312213222).

The spelling of 101200211121 in words is "one hundred one billion, two hundred million, two hundred eleven thousand, one hundred twenty-one".