1211012110122 has 16 divisors (see below), whose sum is σ = 2426280860160. Its totient is φ = 402961263392.

The previous prime is 1211012110079. The next prime is 1211012110129. The reversal of 1211012110122 is 2210112101121.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1211012110129) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 177356298 + ... + 177363125.

It is an arithmetic number, because the mean of its divisors is an integer number (151642553760).

Almost surely, 2^{1211012110122} is an apocalyptic number.

1211012110122 is an abundant number, since it is smaller than the sum of its proper divisors (1215268750038).

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

1211012110122 is a wasteful number, since it uses less digits than its factorization.

1211012110122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 354719997.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 1211012110122 its reverse (2210112101121), we get a palindrome (3421124211243).

Subtracting 1211012110122 from its reverse (2210112101121), we obtain a palindrome (999099990999).

The spelling of 1211012110122 in words is "one trillion, two hundred eleven billion, twelve million, one hundred ten thousand, one hundred twenty-two".