101211110890049 has 2 divisors, whose sum is σ = 101211110890050. Its totient is φ = 101211110890048.

The previous prime is 101211110890039. The next prime is 101211110890069. The reversal of 101211110890049 is 940098011112101.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 96018833166400 + 5192277723649 = 9798920^2 + 2278657^2 .

It is a cyclic number.

It is not a de Polignac number, because 101211110890049 - 2²⁰ = 101211109841473 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 101211110889994 and 101211110890021.

It is not a weakly prime, because it can be changed into another prime (101211110890039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50605555445024 + 50605555445025.

It is an arithmetic number, because the mean of its divisors is an integer number (50605555445025).

Almost surely, 2^{101211110890049} is an apocalyptic number.

It is an amenable number.

101211110890049 is a deficient number, since it is larger than the sum of its proper divisors (1).

101211110890049 is an equidigital number, since it uses as much as digits as its factorization.

101211110890049 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5184, while the sum is 38.

The spelling of 101211110890049 in words is "one hundred one trillion, two hundred eleven billion, one hundred ten million, eight hundred ninety thousand, forty-nine".