122101222011 has 4 divisors (see below), whose sum is σ = 162801629352. Its totient is φ = 81400814672.

The previous prime is 122101221959. The next prime is 122101222021. The reversal of 122101222011 is 110222101221.

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

It is a cyclic number.

It is not a de Polignac number, because 122101222011 - 2¹⁰ = 122101220987 is a prime.

It is not an unprimeable number, because it can be changed into a prime (122101222021) 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, 20350203666 + ... + 20350203671.

It is an arithmetic number, because the mean of its divisors is an integer number (40700407338).

Almost surely, 2^122101222011 is an apocalyptic number.

122101222011 is a deficient number, since it is larger than the sum of its proper divisors (40700407341).

122101222011 is an equidigital number, since it uses as much as digits as its factorization.

122101222011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40700407340.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 122101222011 its reverse (110222101221), we get a palindrome (232323323232).

The spelling of 122101222011 in words is "one hundred twenty-two billion, one hundred one million, two hundred twenty-two thousand, eleven".