1202121211112 has 16 divisors (see below), whose sum is σ = 2254264848900. Its totient is φ = 600983918080.

The previous prime is 1202121211091. The next prime is 1202121211127. The reversal of 1202121211112 is 2111121212021.

It can be written as a sum of positive squares in 2 ways, for example, as 1103453606116 + 98667604996 = 1050454^2 + 314114^2 .

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, 9519287 + ... + 9644742.

Almost surely, 2^{1202121211112} is an apocalyptic number.

It is an amenable number.

1202121211112 is a deficient number, since it is larger than the sum of its proper divisors (1052143637788).

1202121211112 is a wasteful number, since it uses less digits than its factorization.

1202121211112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19171876 (or 19171872 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 1202121211112 its reverse (2111121212021), we get a palindrome (3313242423133).

Subtracting 1202121211112 from its reverse (2111121212021), we obtain a palindrome (909000000909).

The spelling of 1202121211112 in words is "one trillion, two hundred two billion, one hundred twenty-one million, two hundred eleven thousand, one hundred twelve".