1200201222020 has 48 divisors (see below), whose sum is σ = 2532340888560. Its totient is φ = 477813932544.

The previous prime is 1200201222001. The next prime is 1200201222037. The reversal of 1200201222020 is 202221020021.

It can be written as a sum of positive squares in 8 ways, for example, as 1408350784 + 1198792871236 = 37528^2 + 1094894^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1200201221986 and 1200201222004.

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, 5251982 + ... + 5475738.

It is an arithmetic number, because the mean of its divisors is an integer number (52757101845).

Almost surely, 2^{1200201222020} is an apocalyptic number.

1200201222020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1200201222020 is an abundant number, since it is smaller than the sum of its proper divisors (1332139666540).

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

1200201222020 is a wasteful number, since it uses less digits than its factorization.

1200201222020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 225032 (or 225030 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 1200201222020 its reverse (202221020021), we get a palindrome (1402422242041).

The spelling of 1200201222020 in words is "one trillion, two hundred billion, two hundred one million, two hundred twenty-two thousand, twenty".