122220100212 has 48 divisors (see below), whose sum is σ = 327343551360. Its totient is φ = 34767533952.

The previous prime is 122220100193. The next prime is 122220100229. The reversal of 122220100212 is 212001022221.

It is a junction number, because it is equal to n+sod(n) for n = 122220100191 and 122220100200.

It is a congruent number.

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, 3157623 + ... + 3196094.

It is an arithmetic number, because the mean of its divisors is an integer number (6819657320).

Almost surely, 2^122220100212 is an apocalyptic number.

122220100212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

122220100212 is an abundant number, since it is smaller than the sum of its proper divisors (205123451148).

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

122220100212 is a wasteful number, since it uses less digits than its factorization.

122220100212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6353960 (or 6353958 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 122220100212 its reverse (212001022221), we get a palindrome (334221122433).

The spelling of 122220100212 in words is "one hundred twenty-two billion, two hundred twenty million, one hundred thousand, two hundred twelve".