122020020100 has 72 divisors (see below), whose sum is σ = 298815249600. Its totient is φ = 42840873600.

The previous prime is 122020020079. The next prime is 122020020121. The reversal of 122020020100 is 1020020221.

It is an interprime number because it is at equal distance from previous prime (122020020079) and next prime (122020020121).

It is a Harshad number since it is a multiple of its sum of digits (10).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1880640 + ... + 1944439.

It is an arithmetic number, because the mean of its divisors is an integer number (4150211800).

Almost surely, 2^122020020100 is an apocalyptic number.

122020020100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122020020100 is an abundant number, since it is smaller than the sum of its proper divisors (176795229500).

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

122020020100 is a wasteful number, since it uses less digits than its factorization.

122020020100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3825133 (or 3825126 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 10.

Adding to 122020020100 its reverse (1020020221), we get a palindrome (123040040321).

The spelling of 122020020100 in words is "one hundred twenty-two billion, twenty million, twenty thousand, one hundred".