1201011201212 has 24 divisors (see below), whose sum is σ = 2122841072352. Its totient is φ = 594486648000.

The previous prime is 1201011201197. The next prime is 1201011201241. The reversal of 1201011201212 is 2121021101021.

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, 3171137 + ... + 3529607.

It is an arithmetic number, because the mean of its divisors is an integer number (88451711348).

Almost surely, 2^{1201011201212} is an apocalyptic number.

It is an amenable number.

1201011201212 is a deficient number, since it is larger than the sum of its proper divisors (921829871140).

1201011201212 is a wasteful number, since it uses less digits than its factorization.

1201011201212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 366869 (or 366867 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 1201011201212 its reverse (2121021101021), we get a palindrome (3322032302233).

The spelling of 1201011201212 in words is "one trillion, two hundred one billion, eleven million, two hundred one thousand, two hundred twelve".