122020243400 has 96 divisors (see below), whose sum is σ = 320159865600. Its totient is φ = 42840940800.

The previous prime is 122020243393. The next prime is 122020243427. The reversal of 122020243400 is 4342020221.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 892472 + ... + 1020071.

It is an arithmetic number, because the mean of its divisors is an integer number (3334998600).

Almost surely, 2^122020243400 is an apocalyptic number.

122020243400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122020243400 is an abundant number, since it is smaller than the sum of its proper divisors (198139622200).

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

122020243400 is a wasteful number, since it uses less digits than its factorization.

122020243400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1912599 (or 1912590 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

Adding to 122020243400 its reverse (4342020221), we get a palindrome (126362263621).

The spelling of 122020243400 in words is "one hundred twenty-two billion, twenty million, two hundred forty-three thousand, four hundred".