122122220130 has 160 divisors (see below), whose sum is σ = 346086639360. Its totient is φ = 30813488640.

The previous prime is 122122220117. The next prime is 122122220173. The reversal of 122122220130 is 31022221221.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 13554087 + ... + 13563093.

It is an arithmetic number, because the mean of its divisors is an integer number (2163041496).

Almost surely, 2^122122220130 is an apocalyptic number.

122122220130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 122122220130, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (173043319680).

122122220130 is an abundant number, since it is smaller than the sum of its proper divisors (223964419230).

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

122122220130 is a wasteful number, since it uses less digits than its factorization.

122122220130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9926 (or 9917 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 122122220130 its reverse (31022221221), we get a palindrome (153144441351).

The spelling of 122122220130 in words is "one hundred twenty-two billion, one hundred twenty-two million, two hundred twenty thousand, one hundred thirty".