200122020020 has 24 divisors (see below), whose sum is σ = 452583645864. Its totient is φ = 73891207296.

The previous prime is 200122020013. The next prime is 200122020031. The reversal of 200122020020 is 20020221002.

It can be written as a sum of positive squares in 4 ways, for example, as 5219195536 + 194902824484 = 72244^2 + 441478^2 .

It is a junction number, because it is equal to n+sod(n) for n = 200122019983 and 200122020010.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 384849779 + ... + 384850298.

It is an arithmetic number, because the mean of its divisors is an integer number (18857651911).

Almost surely, 2^200122020020 is an apocalyptic number.

200122020020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

200122020020 is an abundant number, since it is smaller than the sum of its proper divisors (252461625844).

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

200122020020 is a wasteful number, since it uses less digits than its factorization.

200122020020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 769700099 (or 769700097 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 11.

Adding to 200122020020 its reverse (20020221002), we get a palindrome (220142241022).

The spelling of 200122020020 in words is "two hundred billion, one hundred twenty-two million, twenty thousand, twenty".