122102221211011 has 4 divisors (see below), whose sum is σ = 122142908392024. Its totient is φ = 122061534030000.

The previous prime is 122102221210993. The next prime is 122102221211021. The reversal of 122102221211011 is 110112122201221.

It is a happy number.

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-122102221211011 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 122102221211011.

It is not an unprimeable number, because it can be changed into a prime (122102221211021) 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, 20343586005 + ... + 20343592006.

It is an arithmetic number, because the mean of its divisors is an integer number (30535727098006).

Almost surely, 2^{122102221211011} is an apocalyptic number.

122102221211011 is a deficient number, since it is larger than the sum of its proper divisors (40687181013).

122102221211011 is an equidigital number, since it uses as much as digits as its factorization.

122102221211011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40687181012.

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 122102221211011 its reverse (110112122201221), we get a palindrome (232214343412232).

The spelling of 122102221211011 in words is "one hundred twenty-two trillion, one hundred two billion, two hundred twenty-one million, two hundred eleven thousand, eleven".