1220201131112 has 16 divisors (see below), whose sum is σ = 2287903897860. Its totient is φ = 610093425024.

The previous prime is 1220201131099. The next prime is 1220201131129. The reversal of 1220201131112 is 2111311020221.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1120816046596 + 99385084516 = 1058686^2 + 315254^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 127763 + ... + 1567394.

Almost surely, 2^{1220201131112} is an apocalyptic number.

It is an amenable number.

1220201131112 is a deficient number, since it is larger than the sum of its proper divisors (1067702766748).

1220201131112 is a wasteful number, since it uses less digits than its factorization.

1220201131112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1785140 (or 1785136 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 1220201131112 its reverse (2111311020221), we get a palindrome (3331512151333).

The spelling of 1220201131112 in words is "one trillion, two hundred twenty billion, two hundred one million, one hundred thirty-one thousand, one hundred twelve".