1220020001212 has 6 divisors (see below), whose sum is σ = 2135035002128. Its totient is φ = 610010000604.

The previous prime is 1220020001203. The next prime is 1220020001219. The reversal of 1220020001212 is 2121000200221.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1220020001192 and 1220020001201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220020001219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 152502500148 + ... + 152502500155.

Almost surely, 2^{1220020001212} is an apocalyptic number.

It is an amenable number.

1220020001212 is a deficient number, since it is larger than the sum of its proper divisors (915015000916).

1220020001212 is a wasteful number, since it uses less digits than its factorization.

1220020001212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 305005000307 (or 305005000305 counting only the distinct ones).

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

Adding to 1220020001212 its reverse (2121000200221), we get a palindrome (3341020201433).

The spelling of 1220020001212 in words is "one trillion, two hundred twenty billion, twenty million, one thousand, two hundred twelve".