1211211001102 has 16 divisors (see below), whose sum is σ = 1895833436832. Its totient is φ = 579267214240.

The previous prime is 1211211001093. The next prime is 1211211001109. The reversal of 1211211001102 is 2011001121121.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1211211001109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5081352 + ... + 5314372.

It is an arithmetic number, because the mean of its divisors is an integer number (118489589802).

Almost surely, 2^{1211211001102} is an apocalyptic number.

1211211001102 is a deficient number, since it is larger than the sum of its proper divisors (684622435730).

1211211001102 is a wasteful number, since it uses less digits than its factorization.

1211211001102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 346043.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 1211211001102 its reverse (2011001121121), we get a palindrome (3222212122223).

The spelling of 1211211001102 in words is "one trillion, two hundred eleven billion, two hundred eleven million, one thousand, one hundred two".