2212121100211 has 16 divisors (see below), whose sum is σ = 2451710032128. Its totient is φ = 1979185132000.

The previous prime is 2212121100193. The next prime is 2212121100221. The reversal of 2212121100211 is 1120011212122.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2212121100211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2212121100221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5775865 + ... + 6146938.

It is an arithmetic number, because the mean of its divisors is an integer number (153231877008).

Almost surely, 2^{2212121100211} is an apocalyptic number.

2212121100211 is a deficient number, since it is larger than the sum of its proper divisors (239588931917).

2212121100211 is a wasteful number, since it uses less digits than its factorization.

2212121100211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11923082.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 2212121100211 its reverse (1120011212122), we get a palindrome (3332132312333).

The spelling of 2212121100211 in words is "two trillion, two hundred twelve billion, one hundred twenty-one million, one hundred thousand, two hundred eleven".