200120121212020 has 48 divisors (see below), whose sum is σ = 421237202274000. Its totient is φ = 79860480860160.

The previous prime is 200120121211979. The next prime is 200120121212057. The reversal of 200120121212020 is 20212121021002.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 14771446836496 + 185348674375524 = 3843364^2 + 13614282^2 .

It is a junction number, because it is equal to n+sod(n) for n = 200120121211985 and 200120121212003.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 76197130 + ... + 78779710.

It is an arithmetic number, because the mean of its divisors is an integer number (8775775047375).

Almost surely, 2^{200120121212020} is an apocalyptic number.

200120121212020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

200120121212020 is an abundant number, since it is smaller than the sum of its proper divisors (221117081061980).

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

200120121212020 is a wasteful number, since it uses less digits than its factorization.

200120121212020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2591668 (or 2591666 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 200120121212020 its reverse (20212121021002), we get a palindrome (220332242233022).

The spelling of 200120121212020 in words is "two hundred trillion, one hundred twenty billion, one hundred twenty-one million, two hundred twelve thousand, twenty".