122020101220 has 24 divisors (see below), whose sum is σ = 256274122104. Its totient is φ = 48801962496.

The previous prime is 122020101199. The next prime is 122020101223. The reversal of 122020101220 is 22101020221.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 44709410916 + 77310690304 = 211446^2 + 278048^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 122020101220.

It is not an unprimeable number, because it can be changed into a prime (122020101223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 213477 + ... + 538156.

It is an arithmetic number, because the mean of its divisors is an integer number (10678088421).

Almost surely, 2^122020101220 is an apocalyptic number.

122020101220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122020101220 is an abundant number, since it is smaller than the sum of its proper divisors (134254020884).

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

122020101220 is a wasteful number, since it uses less digits than its factorization.

122020101220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 759759 (or 759757 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 122020101220 its reverse (22101020221), we get a palindrome (144121121441).

The spelling of 122020101220 in words is "one hundred twenty-two billion, twenty million, one hundred one thousand, two hundred twenty".