1220002001212 has 12 divisors (see below), whose sum is σ = 2135089361160. Its totient is φ = 609976469456.

The previous prime is 1220002001201. The next prime is 1220002001219. The reversal of 1220002001212 is 2121002000221.

It is a happy number.

It is a super-3 number, since 3×1220002001212³ (a number of 37 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 1220002001192 and 1220002001201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220002001219) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6020662 + ... + 6219997.

It is an arithmetic number, because the mean of its divisors is an integer number (177924113430).

Almost surely, 2^{1220002001212} is an apocalyptic number.

It is an amenable number.

1220002001212 is a deficient number, since it is larger than the sum of its proper divisors (915087359948).

1220002001212 is a wasteful number, since it uses less digits than its factorization.

1220002001212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12265580 (or 12265578 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 1220002001212 its reverse (2121002000221), we get a palindrome (3341004001433).

Subtracting 1220002001212 from its reverse (2121002000221), we obtain a palindrome (900999999009).

It can be divided in two parts, 122000 and 2001212, that added together give a palindrome (2123212).

The spelling of 1220002001212 in words is "one trillion, two hundred twenty billion, two million, one thousand, two hundred twelve".