101212221321311 has 4 divisors (see below), whose sum is σ = 101229723008112. Its totient is φ = 101194719634512.

The previous prime is 101212221321259. The next prime is 101212221321317. The reversal of 101212221321311 is 113123122212101.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-101212221321311 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101212221321317) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8750834726 + ... + 8750846291.

It is an arithmetic number, because the mean of its divisors is an integer number (25307430752028).

Almost surely, 2^{101212221321311} is an apocalyptic number.

101212221321311 is a deficient number, since it is larger than the sum of its proper divisors (17501686801).

101212221321311 is an equidigital number, since it uses as much as digits as its factorization.

101212221321311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17501686800.

The product of its (nonzero) digits is 288, while the sum is 23.

Adding to 101212221321311 its reverse (113123122212101), we get a palindrome (214335343533412).

The spelling of 101212221321311 in words is "one hundred one trillion, two hundred twelve billion, two hundred twenty-one million, three hundred twenty-one thousand, three hundred eleven".