122101211121011 has 4 divisors (see below), whose sum is σ = 122349889759224. Its totient is φ = 121852532482800.

The previous prime is 122101211120927. The next prime is 122101211121017. The reversal of 122101211121011 is 110121112101221.

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-122101211121011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122101211121017) 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, 124339318370 + ... + 124339319351.

It is an arithmetic number, because the mean of its divisors is an integer number (30587472439806).

Almost surely, 2^{122101211121011} is an apocalyptic number.

122101211121011 is a deficient number, since it is larger than the sum of its proper divisors (248678638213).

122101211121011 is an equidigital number, since it uses as much as digits as its factorization.

122101211121011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 248678638212.

The product of its (nonzero) digits is 16, while the sum is 17.

Adding to 122101211121011 its reverse (110121112101221), we get a palindrome (232222323222232).

The spelling of 122101211121011 in words is "one hundred twenty-two trillion, one hundred one billion, two hundred eleven million, one hundred twenty-one thousand, eleven".