1202222121200 has 60 divisors (see below), whose sum is σ = 2888445987000. Its totient is φ = 480870977280.

The previous prime is 1202222121071. The next prime is 1202222121209. The reversal of 1202222121200 is 21212222021.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1202222121209) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18045551 + ... + 18112049.

It is an arithmetic number, because the mean of its divisors is an integer number (48140766450).

Almost surely, 2^{1202222121200} is an apocalyptic number.

1202222121200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1202222121200 is an abundant number, since it is smaller than the sum of its proper divisors (1686223865800).

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

1202222121200 is a wasteful number, since it uses less digits than its factorization.

1202222121200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111714 (or 111703 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 1202222121200 its reverse (21212222021), we get a palindrome (1223434343221).

It can be divided in two parts, 120222 and 2121200, that added together give a palindrome (2241422).

The spelling of 1202222121200 in words is "one trillion, two hundred two billion, two hundred twenty-two million, one hundred twenty-one thousand, two hundred".