1211000220893 has 2 divisors, whose sum is σ = 1211000220894. Its totient is φ = 1211000220892.

The previous prime is 1211000220841. The next prime is 1211000220901. The reversal of 1211000220893 is 3980220001121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1161657151204 + 49343069689 = 1077802^2 + 222133^2 .

It is a cyclic number.

It is not a de Polignac number, because 1211000220893 - 2¹⁶ = 1211000155357 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1211000220803) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 605500110446 + 605500110447.

It is an arithmetic number, because the mean of its divisors is an integer number (605500110447).

Almost surely, 2^{1211000220893} is an apocalyptic number.

It is an amenable number.

1211000220893 is a deficient number, since it is larger than the sum of its proper divisors (1).

1211000220893 is an equidigital number, since it uses as much as digits as its factorization.

1211000220893 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728, while the sum is 29.

The spelling of 1211000220893 in words is "one trillion, two hundred eleven billion, two hundred twenty thousand, eight hundred ninety-three".