122012121011 has 8 divisors (see below), whose sum is σ = 135090761664. Its totient is φ = 109264585320.

The previous prime is 122012120999. The next prime is 122012121017. The reversal of 122012121011 is 110121210221.

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

It is not a de Polignac number, because 122012121011 - 2²² = 122007926707 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122012121017) 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, 82775465 + ... + 82776938.

It is an arithmetic number, because the mean of its divisors is an integer number (16886345208).

Almost surely, 2^122012121011 is an apocalyptic number.

122012121011 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

122012121011 is a deficient number, since it is larger than the sum of its proper divisors (13078640653).

122012121011 is a wasteful number, since it uses less digits than its factorization.

122012121011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165552481.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 122012121011 its reverse (110121210221), we get a palindrome (232133331232).

The spelling of 122012121011 in words is "one hundred twenty-two billion, twelve million, one hundred twenty-one thousand, eleven".