11210220220212 has 72 divisors (see below), whose sum is σ = 32311811245896. Its totient is φ = 3246398613504.

The previous prime is 11210220220187. The next prime is 11210220220253. The reversal of 11210220220212 is 21202202201211.

It is a happy number.

11210220220212 is a `hidden beast` number, since 1 + 1 + 2 + 10 + 220 + 220 + 212 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 7583623056 + 11202636597156 = 87084^2 + 3347034^2 .

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 704505633 + ... + 704521544.

It is an arithmetic number, because the mean of its divisors is an integer number (448775156193).

Almost surely, 2^{11210220220212} is an apocalyptic number.

11210220220212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11210220220212 is an abundant number, since it is smaller than the sum of its proper divisors (21101591025684).

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

11210220220212 is a wasteful number, since it uses less digits than its factorization.

11210220220212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1409027217 (or 1409027212 counting only the distinct ones).

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

Adding to 11210220220212 its reverse (21202202201211), we get a palindrome (32412422421423).

The spelling of 11210220220212 in words is "eleven trillion, two hundred ten billion, two hundred twenty million, two hundred twenty thousand, two hundred twelve".