122118011500 has 48 divisors (see below), whose sum is σ = 267092463456. Its totient is φ = 48776376000.

The previous prime is 122118011479. The next prime is 122118011513. The reversal of 122118011500 is 5110811221.

122118011500 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 168774 + ... + 522226.

It is an arithmetic number, because the mean of its divisors is an integer number (5564426322).

Almost surely, 2^122118011500 is an apocalyptic number.

122118011500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 122118011500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (133546231728).

122118011500 is an abundant number, since it is smaller than the sum of its proper divisors (144974451956).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

122118011500 is a wasteful number, since it uses less digits than its factorization.

122118011500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 354163 (or 354151 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 22.

Adding to 122118011500 its reverse (5110811221), we get a palindrome (127228822721).

The spelling of 122118011500 in words is "one hundred twenty-two billion, one hundred eighteen million, eleven thousand, five hundred".