1202021122200 has 96 divisors (see below), whose sum is σ = 3747082939200. Its totient is φ = 318748216960.

The previous prime is 1202021122189. The next prime is 1202021122201. The reversal of 1202021122200 is 22211202021.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 1202021122200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1202021122201) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5488602 + ... + 5703401.

It is an arithmetic number, because the mean of its divisors is an integer number (39032113950).

Almost surely, 2^{1202021122200} is an apocalyptic number.

1202021122200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1202021122200 is an abundant number, since it is smaller than the sum of its proper divisors (2545061817000).

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

1202021122200 is a wasteful number, since it uses less digits than its factorization.

1202021122200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11192201 (or 11192192 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 1202021122200 its reverse (22211202021), we get a palindrome (1224232324221).

The spelling of 1202021122200 in words is "one trillion, two hundred two billion, twenty-one million, one hundred twenty-two thousand, two hundred".