211121002201001 has 4 divisors (see below), whose sum is σ = 212181911760000. Its totient is φ = 210060092642004.

The previous prime is 211121002200989. The next prime is 211121002201003. The reversal of 211121002201001 is 100102200121112.

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 a cyclic number.

It is not a de Polignac number, because 211121002201001 - 2¹⁰ = 211121002199977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (211121002201003) 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, 530454779201 + ... + 530454779598.

It is an arithmetic number, because the mean of its divisors is an integer number (53045477940000).

Almost surely, 2^{211121002201001} is an apocalyptic number.

It is an amenable number.

211121002201001 is a deficient number, since it is larger than the sum of its proper divisors (1060909558999).

211121002201001 is a wasteful number, since it uses less digits than its factorization.

211121002201001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1060909558998.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 211121002201001 its reverse (100102200121112), we get a palindrome (311223202322113).

The spelling of 211121002201001 in words is "two hundred eleven trillion, one hundred twenty-one billion, two million, two hundred one thousand, one".