11210212001221 has 8 divisors (see below), whose sum is σ = 11804310582080. Its totient is φ = 10616522162688.

The previous prime is 11210212001207. The next prime is 11210212001227. The reversal of 11210212001221 is 12210021201211.

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

It is not a de Polignac number, because 11210212001221 - 2⁹ = 11210212000709 is a prime.

It is a super-2 number, since 2×11210212001221² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11210212001195 and 11210212001204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11210212001227) 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, 102129276 + ... + 102238981.

It is an arithmetic number, because the mean of its divisors is an integer number (1475538822760).

Almost surely, 2^{11210212001221} is an apocalyptic number.

It is an amenable number.

11210212001221 is a deficient number, since it is larger than the sum of its proper divisors (594098580859).

11210212001221 is a wasteful number, since it uses less digits than its factorization.

11210212001221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 204371163.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 11210212001221 its reverse (12210021201211), we get a palindrome (23420233202432).

The spelling of 11210212001221 in words is "eleven trillion, two hundred ten billion, two hundred twelve million, one thousand, two hundred twenty-one".