211001112200220 has 96 divisors (see below), whose sum is σ = 592331674910976. Its totient is φ = 56121412224000.

The previous prime is 211001112200147. The next prime is 211001112200239. The reversal of 211001112200220 is 22002211100112.

It is a super-4 number, since 4×211001112200220⁴ (a number of 58 digits) contains 4444 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 211001112200220.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 261056515 + ... + 261863525.

It is an arithmetic number, because the mean of its divisors is an integer number (6170121613656).

Almost surely, 2^{211001112200220} is an apocalyptic number.

211001112200220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

211001112200220 is an abundant number, since it is smaller than the sum of its proper divisors (381330562710756).

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

211001112200220 is a wasteful number, since it uses less digits than its factorization.

211001112200220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 818291 (or 818289 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 211001112200220 its reverse (22002211100112), we get a palindrome (233003323300332).

The spelling of 211001112200220 in words is "two hundred eleven trillion, one billion, one hundred twelve million, two hundred thousand, two hundred twenty".