122001203220 has 96 divisors (see below), whose sum is σ = 383875414272. Its totient is φ = 28725362688.

The previous prime is 122001203201. The next prime is 122001203231. The reversal of 122001203220 is 22302100221.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 122001203220.

It is a congruent number.

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 31 ways as a sum of consecutive naturals, for example, 3382317 + ... + 3418196.

It is an arithmetic number, because the mean of its divisors is an integer number (3998702232).

Almost surely, 2^122001203220 is an apocalyptic number.

122001203220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122001203220 is an abundant number, since it is smaller than the sum of its proper divisors (261874211052).

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

122001203220 is a wasteful number, since it uses less digits than its factorization.

122001203220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6800561 (or 6800559 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

Adding to 122001203220 its reverse (22302100221), we get a palindrome (144303303441).

It can be divided in two parts, 122001 and 203220, that added together give a triangular number (325221 = T₈₀₆).

The spelling of 122001203220 in words is "one hundred twenty-two billion, one million, two hundred three thousand, two hundred twenty".