1211022122011 has 8 divisors (see below), whose sum is σ = 1304199978480. Its totient is φ = 1117847452512.

The previous prime is 1211022121901. The next prime is 1211022122017. The reversal of 1211022122011 is 1102212201121.

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

It is a cyclic number.

It is not a de Polignac number, because 1211022122011 - 2¹⁷ = 1211021990939 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1211022122017) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23781 + ... + 1556473.

It is an arithmetic number, because the mean of its divisors is an integer number (163024997310).

Almost surely, 2^{1211022122011} is an apocalyptic number.

1211022122011 is a deficient number, since it is larger than the sum of its proper divisors (93177856469).

1211022122011 is a wasteful number, since it uses less digits than its factorization.

1211022122011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1593485.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 1211022122011 its reverse (1102212201121), we get a palindrome (2313234323132).

The spelling of 1211022122011 in words is "one trillion, two hundred eleven billion, twenty-two million, one hundred twenty-two thousand, eleven".