11210212012221 has 48 divisors (see below), whose sum is σ = 17747059359744. Its totient is φ = 6789865969152.

The previous prime is 11210212012211. The next prime is 11210212012231. The reversal of 11210212012221 is 12221021201211.

11210212012221 is a `hidden beast` number, since 11 + 210 + 21 + 201 + 2 + 221 = 666.

It is an interprime number because it is at equal distance from previous prime (11210212012211) and next prime (11210212012231).

It is not a de Polignac number, because 11210212012221 - 2²³ = 11210203623613 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11210212012194 and 11210212012203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11210212012211) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 7077325 + ... + 8515218.

It is an arithmetic number, because the mean of its divisors is an integer number (369730403328).

Almost surely, 2^{11210212012221} is an apocalyptic number.

It is an amenable number.

11210212012221 is a deficient number, since it is larger than the sum of its proper divisors (6536847347523).

11210212012221 is a wasteful number, since it uses less digits than its factorization.

11210212012221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15592730 (or 15592727 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 11210212012221 its reverse (12221021201211), we get a palindrome (23431233213432).

The spelling of 11210212012221 in words is "eleven trillion, two hundred ten billion, two hundred twelve million, twelve thousand, two hundred twenty-one".