20110122101211 has 8 divisors (see below), whose sum is σ = 26813544774720. Its totient is φ = 13406723747592.

The previous prime is 20110122101207. The next prime is 20110122101231. The reversal of 20110122101211 is 11210122101102.

It is a happy number.

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

It is not a de Polignac number, because 20110122101211 - 2² = 20110122101207 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20110122101231) 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, 4054105 + ... + 7527018.

It is an arithmetic number, because the mean of its divisors is an integer number (3351693096840).

Almost surely, 2^{20110122101211} is an apocalyptic number.

20110122101211 is a deficient number, since it is larger than the sum of its proper divisors (6703422673509).

20110122101211 is a wasteful number, since it uses less digits than its factorization.

20110122101211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12159945.

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

Adding to 20110122101211 its reverse (11210122101102), we get a palindrome (31320244202313).

The spelling of 20110122101211 in words is "twenty trillion, one hundred ten billion, one hundred twenty-two million, one hundred one thousand, two hundred eleven".