11220202020 has 48 divisors (see below), whose sum is σ = 31517635968. Its totient is φ = 2982428160.

The previous prime is 11220202001. The next prime is 11220202057. The reversal of 11220202020 is 2020202211.

It is a super-2 number, since 2×11220202020² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (12).

11220202020 is a modest number, since divided by 202020 gives 11220 as remainder.

It is a junction number, because it is equal to n+sod(n) for n = 11220201987 and 11220202005.

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, 281989 + ... + 319308.

It is an arithmetic number, because the mean of its divisors is an integer number (656617416).

Almost surely, 2^11220202020 is an apocalyptic number.

11220202020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11220202020 is an abundant number, since it is smaller than the sum of its proper divisors (20297433948).

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

11220202020 is a wasteful number, since it uses less digits than its factorization.

11220202020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 601620 (or 601618 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 11220202020 its reverse (2020202211), we get a palindrome (13240404231).

The spelling of 11220202020 in words is "eleven billion, two hundred twenty million, two hundred two thousand, twenty".