1201322101211 has 2 divisors, whose sum is σ = 1201322101212. Its totient is φ = 1201322101210.

The previous prime is 1201322101153. The next prime is 1201322101333. The reversal of 1201322101211 is 1121012231021.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1201322101211 - 2²² = 1201317906907 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1201322101211.

It is not a weakly prime, because it can be changed into another prime (4201322101211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 600661050605 + 600661050606.

It is an arithmetic number, because the mean of its divisors is an integer number (600661050606).

Almost surely, 2^{1201322101211} is an apocalyptic number.

1201322101211 is a deficient number, since it is larger than the sum of its proper divisors (1).

1201322101211 is an equidigital number, since it uses as much as digits as its factorization.

1201322101211 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 1201322101211 its reverse (1121012231021), we get a palindrome (2322334332232).

The spelling of 1201322101211 in words is "one trillion, two hundred one billion, three hundred twenty-two million, one hundred one thousand, two hundred eleven".