211222001099 has 2 divisors, whose sum is σ = 211222001100. Its totient is φ = 211222001098.

The previous prime is 211222001077. The next prime is 211222001129. The reversal of 211222001099 is 990100222112.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 211222001099 - 2¹² = 211221997003 is a prime.

It is a super-2 number, since 2×211222001099² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (211222051099) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105611000549 + 105611000550.

It is an arithmetic number, because the mean of its divisors is an integer number (105611000550).

Almost surely, 2^211222001099 is an apocalyptic number.

211222001099 is a deficient number, since it is larger than the sum of its proper divisors (1).

211222001099 is an equidigital number, since it uses as much as digits as its factorization.

211222001099 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296, while the sum is 29.

The spelling of 211222001099 in words is "two hundred eleven billion, two hundred twenty-two million, one thousand, ninety-nine".