1221132314211 has 8 divisors (see below), whose sum is σ = 1628184632064. Its totient is φ = 814084102920.

The previous prime is 1221132314201. The next prime is 1221132314261. The reversal of 1221132314211 is 1124132311221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1221132314211 - 2¹⁵ = 1221132281443 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1221132314201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 248551 + ... + 1582416.

It is an arithmetic number, because the mean of its divisors is an integer number (203523079008).

Almost surely, 2^{1221132314211} is an apocalyptic number.

1221132314211 is a deficient number, since it is larger than the sum of its proper divisors (407052317853).

1221132314211 is a wasteful number, since it uses less digits than its factorization.

1221132314211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2053281.

The product of its digits is 576, while the sum is 24.

Adding to 1221132314211 its reverse (1124132311221), we get a palindrome (2345264625432).

The spelling of 1221132314211 in words is "one trillion, two hundred twenty-one billion, one hundred thirty-two million, three hundred fourteen thousand, two hundred eleven".