11211210200121 has 8 divisors (see below), whose sum is σ = 14948426808000. Its totient is φ = 7474066862832.

The previous prime is 11211210200119. The next prime is 11211210200123. The reversal of 11211210200121 is 12100201211211.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (11211210200119) and next prime (11211210200123).

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

It is not a de Polignac number, because 11211210200121 - 2¹ = 11211210200119 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 11211210200121.

It is not an unprimeable number, because it can be changed into a prime (11211210200123) 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, 17959621 + ... + 18573378.

It is an arithmetic number, because the mean of its divisors is an integer number (1868553351000).

Almost surely, 2^{11211210200121} is an apocalyptic number.

It is an amenable number.

11211210200121 is a deficient number, since it is larger than the sum of its proper divisors (3737216607879).

11211210200121 is a wasteful number, since it uses less digits than its factorization.

11211210200121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36635295.

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

Adding to 11211210200121 its reverse (12100201211211), we get a palindrome (23311411411332).

The spelling of 11211210200121 in words is "eleven trillion, two hundred eleven billion, two hundred ten million, two hundred thousand, one hundred twenty-one".