1211001211102 has 16 divisors (see below), whose sum is σ = 1822892535360. Its totient is φ = 603371613312.

The previous prime is 1211001211097. The next prime is 1211001211111. The reversal of 1211001211102 is 2011121001121.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1642378 + ... + 2262610.

It is an arithmetic number, because the mean of its divisors is an integer number (113930783460).

Almost surely, 2^{1211001211102} is an apocalyptic number.

1211001211102 is a deficient number, since it is larger than the sum of its proper divisors (611891324258).

1211001211102 is a wasteful number, since it uses less digits than its factorization.

1211001211102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 623667.

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

Adding to 1211001211102 its reverse (2011121001121), we get a palindrome (3222122212223).

The spelling of 1211001211102 in words is "one trillion, two hundred eleven billion, one million, two hundred eleven thousand, one hundred two".