200000122020 has 72 divisors (see below), whose sum is σ = 642353342904. Its totient is φ = 50196108288.

The previous prime is 200000122019. The next prime is 200000122051. The reversal of 200000122020 is 20221000002.

It can be written as a sum of positive squares in 4 ways, for example, as 91286162496 + 108713959524 = 302136^2 + 329718^2 .

It is a super-5 number, since 5×200000122020⁵ (a number of 58 digits) contains 55555 as substring.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 200000121993 and 200000122011.

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, 32676699 + ... + 32682818.

It is an arithmetic number, because the mean of its divisors is an integer number (8921574207).

Almost surely, 2^200000122020 is an apocalyptic number.

200000122020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

200000122020 is an abundant number, since it is smaller than the sum of its proper divisors (442353220884).

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

200000122020 is a wasteful number, since it uses less digits than its factorization.

200000122020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65359549 (or 65359544 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 9.

Adding to 200000122020 its reverse (20221000002), we get a palindrome (220221122022).

The spelling of 200000122020 in words is "two hundred billion, one hundred twenty-two thousand, twenty".