211003200121 has 8 divisors (see below), whose sum is σ = 242540426304. Its totient is φ = 179814451920.

The previous prime is 211003200113. The next prime is 211003200137. The reversal of 211003200121 is 121002300112.

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 211003200121 - 2³ = 211003200113 is a prime.

It is a super-2 number, since 2×211003200121² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (211003200101) 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, 87118195 + ... + 87120616.

It is an arithmetic number, because the mean of its divisors is an integer number (30317553288).

Almost surely, 2^211003200121 is an apocalyptic number.

It is an amenable number.

211003200121 is a deficient number, since it is larger than the sum of its proper divisors (31537226183).

211003200121 is a wasteful number, since it uses less digits than its factorization.

211003200121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174238991.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 211003200121 its reverse (121002300112), we get a palindrome (332005500233).

Subtracting from 211003200121 its reverse (121002300112), we obtain a palindrome (90000900009).

The spelling of 211003200121 in words is "two hundred eleven billion, three million, two hundred thousand, one hundred twenty-one".