122110001220 has 48 divisors (see below), whose sum is σ = 341958290688. Its totient is φ = 32557877760.

The previous prime is 122110001219. The next prime is 122110001227. The reversal of 122110001220 is 22100011221.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 122110001196 and 122110001205.

It is not an unprimeable number, because it can be changed into a prime (122110001227) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 271477 + ... + 563843.

It is an arithmetic number, because the mean of its divisors is an integer number (7124131056).

Almost surely, 2^122110001220 is an apocalyptic number.

122110001220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122110001220 is an abundant number, since it is smaller than the sum of its proper divisors (219848289468).

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

122110001220 is a wasteful number, since it uses less digits than its factorization.

122110001220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 299340 (or 299338 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 122110001220 its reverse (22100011221), we get a palindrome (144210012441).

The spelling of 122110001220 in words is "one hundred twenty-two billion, one hundred ten million, one thousand, two hundred twenty".