1201211220012 has 12 divisors (see below), whose sum is σ = 2802826180056. Its totient is φ = 400403740000.

The previous prime is 1201211219969. The next prime is 1201211220071. The reversal of 1201211220012 is 2100221121021.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 1201211219973 and 1201211220000.

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, 50050467489 + ... + 50050467512.

It is an arithmetic number, because the mean of its divisors is an integer number (233568848338).

Almost surely, 2^{1201211220012} is an apocalyptic number.

1201211220012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1201211220012 is an abundant number, since it is smaller than the sum of its proper divisors (1601614960044).

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

1201211220012 is a wasteful number, since it uses less digits than its factorization.

1201211220012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100100935008 (or 100100935006 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 1201211220012 its reverse (2100221121021), we get a palindrome (3301432341033).

The spelling of 1201211220012 in words is "one trillion, two hundred one billion, two hundred eleven million, two hundred twenty thousand, twelve".