11012230021221 has 96 divisors (see below), whose sum is σ = 19396829297664. Its totient is φ = 5929013376000.

The previous prime is 11012230021181. The next prime is 11012230021229. The reversal of 11012230021221 is 12212003221011.

11012230021221 is a `hidden beast` number, since 1 + 1 + 0 + 122 + 300 + 21 + 221 = 666.

It is not a de Polignac number, because 11012230021221 - 2¹¹ = 11012230019173 is a prime.

It is a super-3 number, since 3×11012230021221³ (a number of 40 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 11012230021194 and 11012230021203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11012230021229) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 6458881 + ... + 7983833.

It is an arithmetic number, because the mean of its divisors is an integer number (202050305184).

Almost surely, 2^{11012230021221} is an apocalyptic number.

11012230021221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

11012230021221 is a deficient number, since it is larger than the sum of its proper divisors (8384599276443).

11012230021221 is a wasteful number, since it uses less digits than its factorization.

11012230021221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1525195 (or 1525192 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 11012230021221 its reverse (12212003221011), we get a palindrome (23224233242232).

The spelling of 11012230021221 in words is "eleven trillion, twelve billion, two hundred thirty million, twenty-one thousand, two hundred twenty-one".