11220022212021 has 80 divisors (see below), whose sum is σ = 19474358977920. Its totient is φ = 6304661205120.

The previous prime is 11220022211977. The next prime is 11220022212037. The reversal of 11220022212021 is 12021222002211.

It is a happy number.

11220022212021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11220022212021 - 2¹⁵ = 11220022179253 is a prime.

It is a super-2 number, since 2×11220022212021² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11220022211985 and 11220022212003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11220022212221) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 136473795 + ... + 136555983.

It is an arithmetic number, because the mean of its divisors is an integer number (243429487224).

Almost surely, 2^{11220022212021} is an apocalyptic number.

It is an amenable number.

11220022212021 is a deficient number, since it is larger than the sum of its proper divisors (8254336765899).

11220022212021 is an equidigital number, since it uses as much as digits as its factorization.

11220022212021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86216 (or 86207 counting only the distinct ones).

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

Adding to 11220022212021 its reverse (12021222002211), we get a palindrome (23241244214232).

The spelling of 11220022212021 in words is "eleven trillion, two hundred twenty billion, twenty-two million, two hundred twelve thousand, twenty-one".