122002313220 has 144 divisors (see below), whose sum is σ = 412466221440. Its totient is φ = 29008585728.

The previous prime is 122002313183. The next prime is 122002313231. The reversal of 122002313220 is 22313200221.

122002313220 is a `hidden beast` number, since 12 + 200 + 231 + 3 + 220 = 666.

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 = 122002313193 and 122002313202.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 991072 + ... + 1107351.

It is an arithmetic number, because the mean of its divisors is an integer number (2864348760).

Almost surely, 2^122002313220 is an apocalyptic number.

122002313220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122002313220 is an abundant number, since it is smaller than the sum of its proper divisors (290463908220).

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

122002313220 is a wasteful number, since it uses less digits than its factorization.

122002313220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2098474 (or 2098469 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 122002313220 its reverse (22313200221), we get a palindrome (144315513441).

The spelling of 122002313220 in words is "one hundred twenty-two billion, two million, three hundred thirteen thousand, two hundred twenty".