1211113310202 has 64 divisors (see below), whose sum is σ = 2796434409600. Its totient is φ = 388066371840.

The previous prime is 1211113310167. The next prime is 1211113310279. The reversal of 1211113310202 is 2020133111121.

1211113310202 is a `hidden beast` number, since 1 + 21 + 111 + 331 + 0 + 202 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1347999 + ... + 2058962.

It is an arithmetic number, because the mean of its divisors is an integer number (43694287650).

Almost surely, 2^{1211113310202} is an apocalyptic number.

1211113310202 is an abundant number, since it is smaller than the sum of its proper divisors (1585321099398).

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

1211113310202 is a wasteful number, since it uses less digits than its factorization.

1211113310202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3407228 (or 3407222 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

Adding to 1211113310202 its reverse (2020133111121), we get a palindrome (3231246421323).

The spelling of 1211113310202 in words is "one trillion, two hundred eleven billion, one hundred thirteen million, three hundred ten thousand, two hundred two".