20212001101291 has 2 divisors, whose sum is σ = 20212001101292. Its totient is φ = 20212001101290.

The previous prime is 20212001101189. The next prime is 20212001101309. The reversal of 20212001101291 is 19210110021202.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20212001101291 - 2⁷ = 20212001101163 is a prime.

It is not a weakly prime, because it can be changed into another prime (20212008101291) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10106000550645 + 10106000550646.

It is an arithmetic number, because the mean of its divisors is an integer number (10106000550646).

Almost surely, 2^{20212001101291} is an apocalyptic number.

20212001101291 is a deficient number, since it is larger than the sum of its proper divisors (1).

20212001101291 is an equidigital number, since it uses as much as digits as its factorization.

20212001101291 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 22.

Adding to 20212001101291 its reverse (19210110021202), we get a palindrome (39422111122493).

The spelling of 20212001101291 in words is "twenty trillion, two hundred twelve billion, one million, one hundred one thousand, two hundred ninety-one".