1202021212212 has 60 divisors (see below), whose sum is σ = 3143304654336. Its totient is φ = 400548298320.

The previous prime is 1202021212207. The next prime is 1202021212253. The reversal of 1202021212212 is 2122121202021.

It is a happy number.

1202021212212 is a `hidden beast` number, since 120 + 202 + 121 + 221 + 2 = 666.

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 pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 458637 + ... + 1616907.

Almost surely, 2^{1202021212212} is an apocalyptic number.

1202021212212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1202021212212 is an abundant number, since it is smaller than the sum of its proper divisors (1941283442124).

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

1202021212212 is a wasteful number, since it uses less digits than its factorization.

1202021212212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1161490 (or 1161479 counting only the distinct ones).

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

Adding to 1202021212212 its reverse (2122121202021), we get a palindrome (3324142414233).

The spelling of 1202021212212 in words is "one trillion, two hundred two billion, twenty-one million, two hundred twelve thousand, two hundred twelve".