1201021122200 has 48 divisors (see below), whose sum is σ = 2792454374160. Its totient is φ = 480394640000.

The previous prime is 1201021122199. The next prime is 1201021122221. The reversal of 1201021122200 is 22211201021.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9600050 + ... + 9724350.

It is an arithmetic number, because the mean of its divisors is an integer number (58176132795).

Almost surely, 2^{1201021122200} is an apocalyptic number.

1201021122200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1201021122200 is an abundant number, since it is smaller than the sum of its proper divisors (1591433251960).

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

1201021122200 is a wasteful number, since it uses less digits than its factorization.

1201021122200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172628 (or 172619 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 1201021122200 its reverse (22211201021), we get a palindrome (1223232323221).

The spelling of 1201021122200 in words is "one trillion, two hundred one billion, twenty-one million, one hundred twenty-two thousand, two hundred".