2101222112211 has 28 divisors (see below), whose sum is σ = 3155173286760. Its totient is φ = 1398688754400.

The previous prime is 2101222112161. The next prime is 2101222112263. The reversal of 2101222112211 is 1122112221012.

2101222112211 is a `hidden beast` number, since 210 + 1 + 22 + 211 + 221 + 1 = 666.

It is not a de Polignac number, because 2101222112211 - 2⁶ = 2101222112147 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2101222116211) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 1706490 + ... + 2667311.

Almost surely, 2^{2101222112211} is an apocalyptic number.

2101222112211 is a deficient number, since it is larger than the sum of its proper divisors (1053951174549).

2101222112211 is an frugal number, since it uses more digits than its factorization.

2101222112211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4374478 (or 4374463 counting only the distinct ones).

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

Adding to 2101222112211 its reverse (1122112221012), we get a palindrome (3223334333223).

The spelling of 2101222112211 in words is "two trillion, one hundred one billion, two hundred twenty-two million, one hundred twelve thousand, two hundred eleven".