20221212111101 has 8 divisors (see below), whose sum is σ = 20234877432000. Its totient is φ = 20207548139328.

The previous prime is 20221212111083. The next prime is 20221212111151. The reversal of 20221212111101 is 10111121212202.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20221212111101 is a prime.

It is a super-2 number, since 2×20221212111101² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 20221212111101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20221212111151) 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, 30606290 + ... + 31259996.

It is an arithmetic number, because the mean of its divisors is an integer number (2529359679000).

Almost surely, 2^{20221212111101} is an apocalyptic number.

It is an amenable number.

20221212111101 is a deficient number, since it is larger than the sum of its proper divisors (13665320899).

20221212111101 is a wasteful number, since it uses less digits than its factorization.

20221212111101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 674563.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 20221212111101 its reverse (10111121212202), we get a palindrome (30332333323303).

The spelling of 20221212111101 in words is "twenty trillion, two hundred twenty-one billion, two hundred twelve million, one hundred eleven thousand, one hundred one".