11021212122220 has 12 divisors (see below), whose sum is σ = 23144545456704. Its totient is φ = 4408484848880.

The previous prime is 11021212122209. The next prime is 11021212122241. The reversal of 11021212122220 is 2222121212011.

11021212122220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 275530303036 + ... + 275530303075.

It is an arithmetic number, because the mean of its divisors is an integer number (1928712121392).

Almost surely, 2^{11021212122220} is an apocalyptic number.

11021212122220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11021212122220 is an abundant number, since it is smaller than the sum of its proper divisors (12123333334484).

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

11021212122220 is a wasteful number, since it uses less digits than its factorization.

11021212122220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 551060606120 (or 551060606118 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 11021212122220 its reverse (2222121212011), we get a palindrome (13243333334231).

The spelling of 11021212122220 in words is "eleven trillion, twenty-one billion, two hundred twelve million, one hundred twenty-two thousand, two hundred twenty".