11022220212021 has 20 divisors (see below), whose sum is σ = 16479953938272. Its totient is φ = 7341603428808.

The previous prime is 11022220212007. The next prime is 11022220212049. The reversal of 11022220212021 is 12021202222011.

It is a happy number.

It is not a de Polignac number, because 11022220212021 - 2³⁹ = 10472464398133 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 11022220211985 and 11022220212003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11022220212001) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 60495321 + ... + 60677246.

Almost surely, 2^{11022220212021} is an apocalyptic number.

It is an amenable number.

11022220212021 is a deficient number, since it is larger than the sum of its proper divisors (5457733726251).

11022220212021 is a wasteful number, since it uses less digits than its factorization.

11022220212021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121173702 (or 121173693 counting only the distinct ones).

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

Adding to 11022220212021 its reverse (12021202222011), we get a palindrome (23043422434032).

The spelling of 11022220212021 in words is "eleven trillion, twenty-two billion, two hundred twenty million, two hundred twelve thousand, twenty-one".