1201020120200 has 24 divisors (see below), whose sum is σ = 2792371779930. Its totient is φ = 480408048000.

The previous prime is 1201020120173. The next prime is 1201020120203. The reversal of 1201020120200 is 20210201021.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 487458105124 + 713562015076 = 698182^2 + 844726^2 .

It is not an unprimeable number, because it can be changed into a prime (1201020120203) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3002550101 + ... + 3002550500.

Almost surely, 2^{1201020120200} is an apocalyptic number.

1201020120200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1201020120200 is an abundant number, since it is smaller than the sum of its proper divisors (1591351659730).

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

1201020120200 is a wasteful number, since it uses less digits than its factorization.

1201020120200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6005100617 (or 6005100608 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 1201020120200 its reverse (20210201021), we get a palindrome (1221230321221).

The spelling of 1201020120200 in words is "one trillion, two hundred one billion, twenty million, one hundred twenty thousand, two hundred".