1200221210212 has 12 divisors (see below), whose sum is σ = 2103104312316. Its totient is φ = 599334263840.

The previous prime is 1200221210197. The next prime is 1200221210311. The reversal of 1200221210212 is 2120121220021.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 697265080576 + 502956129636 = 835024^2 + 709194^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 194081839 + ... + 194088022.

It is an arithmetic number, because the mean of its divisors is an integer number (175258692693).

Almost surely, 2^{1200221210212} is an apocalyptic number.

It is an amenable number.

1200221210212 is a deficient number, since it is larger than the sum of its proper divisors (902883102104).

1200221210212 is a wasteful number, since it uses less digits than its factorization.

1200221210212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 388170638 (or 388170636 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 1200221210212 its reverse (2120121220021), we get a palindrome (3320342430233).

The spelling of 1200221210212 in words is "one trillion, two hundred billion, two hundred twenty-one million, two hundred ten thousand, two hundred twelve".