2012221012211 has 4 divisors (see below), whose sum is σ = 2012227326672. Its totient is φ = 2012214697752.

The previous prime is 2012221012171. The next prime is 2012221012259. The reversal of 2012221012211 is 1122101222102.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2012221012211 is a prime.

It is a super-2 number, since 2×2012221012211² (a number of 25 digits) contains 22 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 2012221012211.

It is not an unprimeable number, because it can be changed into a prime (2012221062211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2652311 + ... + 3325536.

It is an arithmetic number, because the mean of its divisors is an integer number (503056831668).

Almost surely, 2^{2012221012211} is an apocalyptic number.

2012221012211 is a deficient number, since it is larger than the sum of its proper divisors (6314461).

2012221012211 is an equidigital number, since it uses as much as digits as its factorization.

2012221012211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6314460.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 2012221012211 its reverse (1122101222102), we get a palindrome (3134322234313).

The spelling of 2012221012211 in words is "two trillion, twelve billion, two hundred twenty-one million, twelve thousand, two hundred eleven".