211203311220220 has 24 divisors (see below), whose sum is σ = 483847585705008. Its totient is φ = 76801204080000.

The previous prime is 211203311220211. The next prime is 211203311220233. The reversal of 211203311220220 is 22022113302112.

211203311220220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×211203311220220³ (a number of 44 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 211203311220191 and 211203311220200.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 480007525281 + ... + 480007525720.

It is an arithmetic number, because the mean of its divisors is an integer number (20160316071042).

Almost surely, 2^{211203311220220} is an apocalyptic number.

211203311220220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

211203311220220 is an abundant number, since it is smaller than the sum of its proper divisors (272644274484788).

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

211203311220220 is a wasteful number, since it uses less digits than its factorization.

211203311220220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 960015051021 (or 960015051019 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 211203311220220 its reverse (22022113302112), we get a palindrome (233225424522332).

The spelling of 211203311220220 in words is "two hundred eleven trillion, two hundred three billion, three hundred eleven million, two hundred twenty thousand, two hundred twenty".