1202221201212 has 60 divisors (see below), whose sum is σ = 3142988452296. Its totient is φ = 400721942880.

The previous prime is 1202221201157. The next prime is 1202221201289. The reversal of 1202221201212 is 2121021222021.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 8196762 + ... + 8342142.

Almost surely, 2^{1202221201212} is an apocalyptic number.

1202221201212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1202221201212 is an abundant number, since it is smaller than the sum of its proper divisors (1940767251084).

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

1202221201212 is a wasteful number, since it uses less digits than its factorization.

1202221201212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170920 (or 170909 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 1202221201212 its reverse (2121021222021), we get a palindrome (3323242423233).

The spelling of 1202221201212 in words is "one trillion, two hundred two billion, two hundred twenty-one million, two hundred one thousand, two hundred twelve".