1211302213102 has 8 divisors (see below), whose sum is σ = 1912582441800. Its totient is φ = 573774732504.

The previous prime is 1211302213081. The next prime is 1211302213151. The reversal of 1211302213102 is 2013122031121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a self number, because there is not a number n which added to its sum of digits gives 1211302213102.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15938186977 + ... + 15938187052.

It is an arithmetic number, because the mean of its divisors is an integer number (239072805225).

Almost surely, 2^{1211302213102} is an apocalyptic number.

1211302213102 is a deficient number, since it is larger than the sum of its proper divisors (701280228698).

1211302213102 is a wasteful number, since it uses less digits than its factorization.

1211302213102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31876374050.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 1211302213102 its reverse (2013122031121), we get a palindrome (3224424244223).

The spelling of 1211302213102 in words is "one trillion, two hundred eleven billion, three hundred two million, two hundred thirteen thousand, one hundred two".