1211200102102 has 8 divisors (see below), whose sum is σ = 1816831441656. Its totient is φ = 605589621552.

The previous prime is 1211200102037. The next prime is 1211200102103. The reversal of 1211200102102 is 2012010021121.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1211200102103) by changing a digit.

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, 5068768 + ... + 5302339.

It is an arithmetic number, because the mean of its divisors is an integer number (227103930207).

Almost surely, 2^{1211200102102} is an apocalyptic number.

1211200102102 is a deficient number, since it is larger than the sum of its proper divisors (605631339554).

1211200102102 is a wasteful number, since it uses less digits than its factorization.

1211200102102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10429502.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 1211200102102 its reverse (2012010021121), we get a palindrome (3223210123223).

The spelling of 1211200102102 in words is "one trillion, two hundred eleven billion, two hundred million, one hundred two thousand, one hundred two".