1200221220212 has 48 divisors (see below), whose sum is σ = 2488095792000. Its totient is φ = 495667369344.

The previous prime is 1200221220059. The next prime is 1200221220227. The reversal of 1200221220212 is 2120221220021.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1038662 + ... + 1865277.

It is an arithmetic number, because the mean of its divisors is an integer number (51835329000).

Almost surely, 2^{1200221220212} is an apocalyptic number.

It is an amenable number.

1200221220212 is an abundant number, since it is smaller than the sum of its proper divisors (1287874571788).

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

1200221220212 is a wasteful number, since it uses less digits than its factorization.

1200221220212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2904488 (or 2904486 counting only the distinct ones).

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

Adding to 1200221220212 its reverse (2120221220021), we get a palindrome (3320442440233).

The spelling of 1200221220212 in words is "one trillion, two hundred billion, two hundred twenty-one million, two hundred twenty thousand, two hundred twelve".