211201111992929 has 2 divisors, whose sum is σ = 211201111992930. Its totient is φ = 211201111992928.

The previous prime is 211201111992919. The next prime is 211201111992973. The reversal of 211201111992929 is 929299111102112.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 202334920904704 + 8866191088225 = 14224448^2 + 2977615^2 .

It is a cyclic number.

It is not a de Polignac number, because 211201111992929 - 2³⁶ = 211132392516193 is a prime.

It is not a weakly prime, because it can be changed into another prime (211201111992919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105600555996464 + 105600555996465.

It is an arithmetic number, because the mean of its divisors is an integer number (105600555996465).

Almost surely, 2^{211201111992929} is an apocalyptic number.

It is an amenable number.

211201111992929 is a deficient number, since it is larger than the sum of its proper divisors (1).

211201111992929 is an equidigital number, since it uses as much as digits as its factorization.

211201111992929 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 104976, while the sum is 50.

The spelling of 211201111992929 in words is "two hundred eleven trillion, two hundred one billion, one hundred eleven million, nine hundred ninety-two thousand, nine hundred twenty-nine".