11221220021202 has 32 divisors (see below), whose sum is σ = 24937483065600. Its totient is φ = 3740190887664.

The previous prime is 11221220021177. The next prime is 11221220021233. The reversal of 11221220021202 is 20212002212211.

It is a happy number.

11221220021202 is a `hidden beast` number, since 1 + 1 + 221 + 220 + 0 + 21 + 202 = 666.

It is a super-2 number, since 2×11221220021202² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5047993 + ... + 6922764.

It is an arithmetic number, because the mean of its divisors is an integer number (779296345800).

Almost surely, 2^{11221220021202} is an apocalyptic number.

11221220021202 is an abundant number, since it is smaller than the sum of its proper divisors (13716263044398).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11221220021202 is a wasteful number, since it uses less digits than its factorization.

11221220021202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11988127 (or 11988121 counting only the distinct ones).

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

Adding to 11221220021202 its reverse (20212002212211), we get a palindrome (31433222233413).

The spelling of 11221220021202 in words is "eleven trillion, two hundred twenty-one billion, two hundred twenty million, twenty-one thousand, two hundred two".