122122121011 has 8 divisors (see below), whose sum is σ = 134543184048. Its totient is φ = 109920900000.

The previous prime is 122122121003. The next prime is 122122121027. The reversal of 122122121011 is 110121221221.

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

It is a cyclic number.

It is not a de Polignac number, because 122122121011 - 2³ = 122122121003 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122122124011) 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, 54959340 + ... + 54961561.

It is an arithmetic number, because the mean of its divisors is an integer number (16817898006).

Almost surely, 2^122122121011 is an apocalyptic number.

122122121011 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

122122121011 is a deficient number, since it is larger than the sum of its proper divisors (12421063037).

122122121011 is a wasteful number, since it uses less digits than its factorization.

122122121011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109921013.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 122122121011 its reverse (110121221221), we get a palindrome (232243342232).

It can be divided in two parts, 1221221210 and 11, that added together give a palindrome (1221221221).

The spelling of 122122121011 in words is "one hundred twenty-two billion, one hundred twenty-two million, one hundred twenty-one thousand, eleven".