11222211210020 has 48 divisors (see below), whose sum is σ = 23648121730800. Its totient is φ = 4473380020224.

The previous prime is 11222211210011. The next prime is 11222211210059. The reversal of 11222211210020 is 2001211222211.

It can be written as a sum of positive squares in 8 ways, for example, as 2060838255844 + 9161372954176 = 1435562^2 + 3026776^2 .

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, 11371352 + ... + 12318768.

It is an arithmetic number, because the mean of its divisors is an integer number (492669202725).

Almost surely, 2^{11222211210020} is an apocalyptic number.

11222211210020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11222211210020 is an abundant number, since it is smaller than the sum of its proper divisors (12425910520780).

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

11222211210020 is a wasteful number, since it uses less digits than its factorization.

11222211210020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 949472 (or 949470 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 11222211210020 its reverse (2001211222211), we get a palindrome (13223422432231).

The spelling of 11222211210020 in words is "eleven trillion, two hundred twenty-two billion, two hundred eleven million, two hundred ten thousand, twenty".