20211211351 has 2 divisors, whose sum is σ = 20211211352. Its totient is φ = 20211211350.

The previous prime is 20211211333. The next prime is 20211211369. The reversal of 20211211351 is 15311211202.

It is a balanced prime because it is at equal distance from previous prime (20211211333) and next prime (20211211369).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20211211351 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20211211381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10105605675 + 10105605676.

It is an arithmetic number, because the mean of its divisors is an integer number (10105605676).

Almost surely, 2^20211211351 is an apocalyptic number.

20211211351 is a deficient number, since it is larger than the sum of its proper divisors (1).

20211211351 is an equidigital number, since it uses as much as digits as its factorization.

20211211351 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 120, while the sum is 19.

Adding to 20211211351 its reverse (15311211202), we get a palindrome (35522422553).

The spelling of 20211211351 in words is "twenty billion, two hundred eleven million, two hundred eleven thousand, three hundred fifty-one".