1211203150412 has 24 divisors (see below), whose sum is σ = 2171664069120. Its totient is φ = 590810566160.

The previous prime is 1211203150357. The next prime is 1211203150447. The reversal of 1211203150412 is 2140513021121.

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, 10299362 + ... + 10416297.

It is an arithmetic number, because the mean of its divisors is an integer number (90486002880).

Almost surely, 2^{1211203150412} is an apocalyptic number.

It is an amenable number.

1211203150412 is a deficient number, since it is larger than the sum of its proper divisors (960460918708).

1211203150412 is a wasteful number, since it uses less digits than its factorization.

1211203150412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20716021 (or 20716019 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 23.

Adding to 1211203150412 its reverse (2140513021121), we get a palindrome (3351716171533).

The spelling of 1211203150412 in words is "one trillion, two hundred eleven billion, two hundred three million, one hundred fifty thousand, four hundred twelve".