202001020122 has 128 divisors (see below), whose sum is σ = 481054464000. Its totient is φ = 55859086080.

The previous prime is 202001020121. The next prime is 202001020129. The reversal of 202001020122 is 221020100202.

202001020122 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 202001020098 and 202001020107.

It is not an unprimeable number, because it can be changed into a prime (202001020121) by changing a digit.

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 63 ways as a sum of consecutive naturals, for example, 15958348 + ... + 15971000.

It is an arithmetic number, because the mean of its divisors is an integer number (3758238000).

Almost surely, 2^202001020122 is an apocalyptic number.

202001020122 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 202001020122, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (240527232000).

202001020122 is an abundant number, since it is smaller than the sum of its proper divisors (279053443878).

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

202001020122 is a wasteful number, since it uses less digits than its factorization.

202001020122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13156.

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 202001020122 its reverse (221020100202), we get a palindrome (423021120324).

The spelling of 202001020122 in words is "two hundred two billion, one million, twenty thousand, one hundred twenty-two".