11022220201021 has 8 divisors (see below), whose sum is σ = 11136098607480. Its totient is φ = 10908346841088.

The previous prime is 11022220200899. The next prime is 11022220201103. The reversal of 11022220201021 is 12010202222011.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 113805022500 + 10908415178521 = 337350^2 + 3302789^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11022220201021 - 2²³ = 11022211812413 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11022220200986 and 11022220201004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11022220201121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3210645 + ... + 5687941.

It is an arithmetic number, because the mean of its divisors is an integer number (1392012325935).

Almost surely, 2^{11022220201021} is an apocalyptic number.

It is an amenable number.

11022220201021 is a deficient number, since it is larger than the sum of its proper divisors (113878406459).

11022220201021 is an equidigital number, since it uses as much as digits as its factorization.

11022220201021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2523263.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 11022220201021 its reverse (12010202222011), we get a palindrome (23032422423032).

The spelling of 11022220201021 in words is "eleven trillion, twenty-two billion, two hundred twenty million, two hundred one thousand, twenty-one".