220212200212021 has 4 divisors (see below), whose sum is σ = 220214774945344. Its totient is φ = 220209625478700.

The previous prime is 220212200212019. The next prime is 220212200212087. The reversal of 220212200212021 is 120212002212022.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 220212200212021 - 2¹ = 220212200212019 is a prime.

It is a super-4 number, since 4×220212200212021⁴ (a number of 58 digits) contains 4444 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 220212200212021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220212200212621) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 1287238365 + ... + 1287409426.

It is an arithmetic number, because the mean of its divisors is an integer number (55053693736336).

Almost surely, 2^{220212200212021} is an apocalyptic number.

It is an amenable number.

220212200212021 is a deficient number, since it is larger than the sum of its proper divisors (2574733323).

220212200212021 is an equidigital number, since it uses as much as digits as its factorization.

220212200212021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2574733322.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 220212200212021 its reverse (120212002212022), we get a palindrome (340424202424043).

The spelling of 220212200212021 in words is "two hundred twenty trillion, two hundred twelve billion, two hundred million, two hundred twelve thousand, twenty-one".