211202320220 has 48 divisors (see below), whose sum is σ = 449990378208. Its totient is φ = 83257589760.

The previous prime is 211202320213. The next prime is 211202320261. The reversal of 211202320220 is 22023202112.

211202320220 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×211202320220² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 157340 + ... + 668700.

It is an arithmetic number, because the mean of its divisors is an integer number (9374799546).

Almost surely, 2^211202320220 is an apocalyptic number.

211202320220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

211202320220 is an abundant number, since it is smaller than the sum of its proper divisors (238788057988).

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

211202320220 is a wasteful number, since it uses less digits than its factorization.

211202320220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 511670 (or 511668 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 211202320220 its reverse (22023202112), we get a palindrome (233225522332).

The spelling of 211202320220 in words is "two hundred eleven billion, two hundred two million, three hundred twenty thousand, two hundred twenty".