211920899126051 has 2 divisors, whose sum is σ = 211920899126052. Its totient is φ = 211920899126050.

The previous prime is 211920899126039. The next prime is 211920899126113. The reversal of 211920899126051 is 150621998029112.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 211920899126051 - 2¹⁰ = 211920899125027 is a prime.

It is not a weakly prime, because it can be changed into another prime (211920899123051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105960449563025 + 105960449563026.

It is an arithmetic number, because the mean of its divisors is an integer number (105960449563026).

Almost surely, 2^{211920899126051} is an apocalyptic number.

211920899126051 is a deficient number, since it is larger than the sum of its proper divisors (1).

211920899126051 is an equidigital number, since it uses as much as digits as its factorization.

211920899126051 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1399680, while the sum is 56.

The spelling of 211920899126051 in words is "two hundred eleven trillion, nine hundred twenty billion, eight hundred ninety-nine million, one hundred twenty-six thousand, fifty-one".