211122210313 has 6 divisors (see below), whose sum is σ = 245591142666. Its totient is φ = 180961894512.

The previous prime is 211122210251. The next prime is 211122210317. The reversal of 211122210313 is 313012221112.

It can be written as a sum of positive squares in only one way, i.e., 150492012489 + 60630197824 = 387933^2 + 246232^2 .

It is not a de Polignac number, because 211122210313 - 2³⁷ = 73683256841 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (211122210317) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2154308220 + ... + 2154308317.

It is an arithmetic number, because the mean of its divisors is an integer number (40931857111).

Almost surely, 2^211122210313 is an apocalyptic number.

It is an amenable number.

211122210313 is a deficient number, since it is larger than the sum of its proper divisors (34468932353).

211122210313 is an equidigital number, since it uses as much as digits as its factorization.

211122210313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4308616551 (or 4308616544 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 211122210313 its reverse (313012221112), we get a palindrome (524134431425).

The spelling of 211122210313 in words is "two hundred eleven billion, one hundred twenty-two million, two hundred ten thousand, three hundred thirteen".