201121002100005 has 16 divisors (see below), whose sum is σ = 346546957464960. Its totient is φ = 99013416418368.

The previous prime is 201121002099917. The next prime is 201121002100049. The reversal of 201121002100005 is 500001200121102.

201121002100005 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 201121002100005 - 2⁷ = 201121002099877 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 515694876985 + ... + 515694877374.

It is an arithmetic number, because the mean of its divisors is an integer number (21659184841560).

Almost surely, 2^{201121002100005} is an apocalyptic number.

It is an amenable number.

201121002100005 is a deficient number, since it is larger than the sum of its proper divisors (145425955364955).

201121002100005 is a wasteful number, since it uses less digits than its factorization.

201121002100005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1031389754380.

The product of its (nonzero) digits is 40, while the sum is 15.

Adding to 201121002100005 its reverse (500001200121102), we get a palindrome (701122202221107).

The spelling of 201121002100005 in words is "two hundred one trillion, one hundred twenty-one billion, two million, one hundred thousand, five".