1201202201212 has 24 divisors (see below), whose sum is σ = 2281085109072. Its totient is φ = 550168944000.

The previous prime is 1201202201161. The next prime is 1201202201261. The reversal of 1201202201212 is 2121022021021.

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 7 ways as a sum of consecutive naturals, for example, 88161289 + ... + 88174912.

It is an arithmetic number, because the mean of its divisors is an integer number (95045212878).

Almost surely, 2^{1201202201212} is an apocalyptic number.

It is an amenable number.

1201202201212 is a deficient number, since it is larger than the sum of its proper divisors (1079882907860).

1201202201212 is a wasteful number, since it uses less digits than its factorization.

1201202201212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176336349 (or 176336347 counting only the distinct ones).

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

Adding to 1201202201212 its reverse (2121022021021), we get a palindrome (3322224222233).

The spelling of 1201202201212 in words is "one trillion, two hundred one billion, two hundred two million, two hundred one thousand, two hundred twelve".