2101222211211 has 96 divisors (see below), whose sum is σ = 3150076849920. Its totient is φ = 1349133926400.

The previous prime is 2101222211173. The next prime is 2101222211219. The reversal of 2101222211211 is 1121122221012.

2101222211211 is a `hidden beast` number, since 21 + 0 + 1 + 222 + 211 + 211 = 666.

It is not a de Polignac number, because 2101222211211 - 2⁷ = 2101222211083 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2101222211219) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 3278037451 + ... + 3278038091.

It is an arithmetic number, because the mean of its divisors is an integer number (32813300520).

Almost surely, 2^{2101222211211} is an apocalyptic number.

2101222211211 is a deficient number, since it is larger than the sum of its proper divisors (1048854638709).

2101222211211 is a wasteful number, since it uses less digits than its factorization.

2101222211211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1397 (or 1394 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 2101222211211 its reverse (1121122221012), we get a palindrome (3222344432223).

The spelling of 2101222211211 in words is "two trillion, one hundred one billion, two hundred twenty-two million, two hundred eleven thousand, two hundred eleven".