1200221200212 has 24 divisors (see below), whose sum is σ = 2922277705536. Its totient is φ = 382679223168.

The previous prime is 1200221200193. The next prime is 1200221200271. The reversal of 1200221200212 is 2120021220021.

It is a junction number, because it is equal to n+sod(n) for n = 1200221200191 and 1200221200200.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2174313493 + ... + 2174314044.

It is an arithmetic number, because the mean of its divisors is an integer number (121761571064).

Almost surely, 2^{1200221200212} is an apocalyptic number.

1200221200212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1200221200212 is an abundant number, since it is smaller than the sum of its proper divisors (1722056505324).

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

1200221200212 is a wasteful number, since it uses less digits than its factorization.

1200221200212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4348627567 (or 4348627565 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 1200221200212 its reverse (2120021220021), we get a palindrome (3320242420233).

The spelling of 1200221200212 in words is "one trillion, two hundred billion, two hundred twenty-one million, two hundred thousand, two hundred twelve".