220000202121211 has 4 divisors (see below), whose sum is σ = 220314039785424. Its totient is φ = 219686364457000.

The previous prime is 220000202121191. The next prime is 220000202121251. The reversal of 220000202121211 is 112121202000022.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 220000202121211 - 2⁵ = 220000202121179 is a prime.

It is a super-2 number, since 2×220000202121211² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (220000202121251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 156918831055 + ... + 156918832456.

It is an arithmetic number, because the mean of its divisors is an integer number (55078509946356).

Almost surely, 2^{220000202121211} is an apocalyptic number.

220000202121211 is a deficient number, since it is larger than the sum of its proper divisors (313837664213).

220000202121211 is an equidigital number, since it uses as much as digits as its factorization.

220000202121211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 313837664212.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 220000202121211 its reverse (112121202000022), we get a palindrome (332121404121233).

The spelling of 220000202121211 in words is "two hundred twenty trillion, two hundred two million, one hundred twenty-one thousand, two hundred eleven".