200001022021120 has 40 divisors (see below), whose sum is σ = 479533700461464. Its totient is φ = 80000408807424.

The previous prime is 200001022021079. The next prime is 200001022021139. The reversal of 200001022021120 is 21120220100002.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is a self number, because there is not a number n which added to its sum of digits gives 200001022021120.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39062697054 + ... + 39062702173.

Almost surely, 2^{200001022021120} is an apocalyptic number.

200001022021120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

200001022021120 is an abundant number, since it is smaller than the sum of its proper divisors (279532678440344).

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

200001022021120 is an frugal number, since it uses more digits than its factorization.

200001022021120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78125399250 (or 78125399234 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 200001022021120 its reverse (21120220100002), we get a palindrome (221121242121122).

The spelling of 200001022021120 in words is "two hundred trillion, one billion, twenty-two million, twenty-one thousand, one hundred twenty".