122002202021220 has 192 divisors, whose sum is σ = 396075960483840. Its totient is φ = 31118550477696.

The previous prime is 122002202021209. The next prime is 122002202021233. The reversal of 122002202021220 is 22120202200221.

122002202021220 is a `hidden beast` number, since 1 + 2 + 20 + 0 + 220 + 202 + 1 + 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 = 122002202021193 and 122002202021202.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 541486309 + ... + 541711571.

It is an arithmetic number, because the mean of its divisors is an integer number (2062895627520).

Almost surely, 2^{122002202021220} is an apocalyptic number.

122002202021220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122002202021220 is an abundant number, since it is smaller than the sum of its proper divisors (274073758462620).

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

122002202021220 is a wasteful number, since it uses less digits than its factorization.

122002202021220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 268911 (or 268903 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 122002202021220 its reverse (22120202200221), we get a palindrome (144122404221441).

The spelling of 122002202021220 in words is "one hundred twenty-two trillion, two billion, two hundred two million, twenty-one thousand, two hundred twenty".