11220222021021 has 24 divisors (see below), whose sum is σ = 17461003379456. Its totient is φ = 6901854337440.

The previous prime is 11220222020941. The next prime is 11220222021079. The reversal of 11220222021021 is 12012022202211.

It is a happy number.

11220222021021 is a `hidden beast` number, since 1 + 12 + 202 + 220 + 210 + 21 = 666.

It is not a de Polignac number, because 11220222021021 - 2⁹ = 11220222020509 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11220222020985 and 11220222021003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11220222028021) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 19842745 + ... + 20400366.

Almost surely, 2^{11220222021021} is an apocalyptic number.

It is an amenable number.

11220222021021 is a deficient number, since it is larger than the sum of its proper divisors (6240781358435).

11220222021021 is a wasteful number, since it uses less digits than its factorization.

11220222021021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40245513 (or 40245510 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 11220222021021 its reverse (12012022202211), we get a palindrome (23232244223232).

The spelling of 11220222021021 in words is "eleven trillion, two hundred twenty billion, two hundred twenty-two million, twenty-one thousand, twenty-one".