122121213311 has 8 divisors (see below), whose sum is σ = 130128414480. Its totient is φ = 114205523328.

The previous prime is 122121213293. The next prime is 122121213329. The reversal of 122121213311 is 113312121221.

It is an interprime number because it is at equal distance from previous prime (122121213293) and next prime (122121213329).

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-122121213311 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 (122121213341) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22875041 + ... + 22880378.

It is an arithmetic number, because the mean of its divisors is an integer number (16266051810).

Almost surely, 2^122121213311 is an apocalyptic number.

122121213311 is a deficient number, since it is larger than the sum of its proper divisors (8007201169).

122121213311 is a wasteful number, since it uses less digits than its factorization.

122121213311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45755593.

The product of its digits is 144, while the sum is 20.

Adding to 122121213311 its reverse (113312121221), we get a palindrome (235433334532).

The spelling of 122121213311 in words is "one hundred twenty-two billion, one hundred twenty-one million, two hundred thirteen thousand, three hundred eleven".