122212231020 has 144 divisors (see below), whose sum is σ = 404546268672. Its totient is φ = 29617326720.

The previous prime is 122212230991. The next prime is 122212231051. The reversal of 122212231020 is 20132212221.

122212231020 is a `hidden beast` number, since 122 + 212 + 2 + 310 + 20 = 666.

122212231020 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is a junction number, because it is equal to n+sod(n) for n = 122212230984 and 122212231002.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 7204669 + ... + 7221611.

It is an arithmetic number, because the mean of its divisors is an integer number (2809349088).

Almost surely, 2^122212231020 is an apocalyptic number.

122212231020 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 122212231020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (202273134336).

122212231020 is an abundant number, since it is smaller than the sum of its proper divisors (282334037652).

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

122212231020 is a wasteful number, since it uses less digits than its factorization.

122212231020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20612 (or 20607 counting only the distinct ones).

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

Adding to 122212231020 its reverse (20132212221), we get a palindrome (142344443241).

The spelling of 122212231020 in words is "one hundred twenty-two billion, two hundred twelve million, two hundred thirty-one thousand, twenty".