201121102200111 has 8 divisors (see below), whose sum is σ = 268618303451904. Its totient is φ = 133852317874200.

The previous prime is 201121102200103. The next prime is 201121102200119. The reversal of 201121102200111 is 111002201121102.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (201121102200103) and next prime (201121102200119).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 201121102200111 - 2³ = 201121102200103 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201121102200119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57104229415 + ... + 57104232936.

It is an arithmetic number, because the mean of its divisors is an integer number (33577287931488).

Almost surely, 2^{201121102200111} is an apocalyptic number.

201121102200111 is a deficient number, since it is larger than the sum of its proper divisors (67497201251793).

201121102200111 is a wasteful number, since it uses less digits than its factorization.

201121102200111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114208462941.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 201121102200111 its reverse (111002201121102), we get a palindrome (312123303321213).

The spelling of 201121102200111 in words is "two hundred one trillion, one hundred twenty-one billion, one hundred two million, two hundred thousand, one hundred eleven".