1220112020200 has 24 divisors (see below), whose sum is σ = 2836760447430. Its totient is φ = 488044808000.

The previous prime is 1220112020111. The next prime is 1220112020209. The reversal of 1220112020200 is 20202110221.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 629264600644 + 590847419556 = 793262^2 + 768666^2 .

It is not an unprimeable number, because it can be changed into a prime (1220112020209) 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, 3050279851 + ... + 3050280250.

Almost surely, 2^{1220112020200} is an apocalyptic number.

1220112020200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1220112020200 is an abundant number, since it is smaller than the sum of its proper divisors (1616648427230).

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

1220112020200 is a wasteful number, since it uses less digits than its factorization.

1220112020200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6100560117 (or 6100560108 counting only the distinct ones).

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

Adding to 1220112020200 its reverse (20202110221), we get a palindrome (1240314130421).

The spelling of 1220112020200 in words is "one trillion, two hundred twenty billion, one hundred twelve million, twenty thousand, two hundred".